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José M Belizán a Latin American Centre for Perinatology,
Pan American Health Organisation, World Health Organisation, Hospital
de Clínicas s/n, 11000 Montevideo, Uruguay, b Ecole de Santé Publique,
Université Libre de Bruxelles, Campues Erasme CP 595 808, Brussels,
Belgium
Correspondence to: J M Belizán
belizanj{at}clap.ops-oms.org
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Abstract |
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Objectives:
To estimate the incidences of caesarean
sections in Latin American countries and correlate these with
socioeconomic, demographic, and healthcare variables.
Design:
Descriptive and ecological study.
Setting:
19 Latin American countries.
Main outcome measures:
National estimates of caesarean
section rates in each country.
Results:
Seven countries had caesarean section rates below 15%. The remaining 12 countries had rates above 15% (range 16.8% to 40.0%). These 12 countries account for 81% of the
deliveries in the region. A positive and significant correlation was
observed between the gross national product per capita and rate of
caesarean section (rs=0.746), and higher
rates were observed in private hospitals than in public ones. Taking
15% as a medically justified accepted rate, over 850 000 unnecessary
caesarean sections are performed each year in the region.
Conclusions:
The reported figures represent an
unnecessary increased risk for young women and their babies. From the
economic perspective, this is a burden to health systems that work with limited budgets.
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Key messages
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Introduction |
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Caesarean sections increase the health risks for mothers and babies as well as the costs of health care compared with normal deliveries.1-5 Concern has been expressed at the growing rates of caesarean section in some countries of Latin America over the past few years. 6 7 Some developed countries have apparently controlled the increase in caesarean section, although the rates may still be high.8-10 However, in other developed countries, caesarean section rates are still increasing and are a matter of concern. 11 12
Information on rates of caesarean section is not easily obtained for
most Latin American countries because of a lack of good national
records. We estimated the recent incidence of caesarean section in
several Latin American countries using different sources of information
and correlated these rates with the socioeconomic, demographic, and
health variables.
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Methods |
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We studied the Spanish, Portuguese, and French speaking American developing countries. Belize, Surinam, Guyana, and the English and Dutch speaking Caribbean countries were not included. Assistance with deliveries in all Latin American countries is provided by at least two types of hospital: public and private. Public hospitals are free of charge for anyone whereas private hospitals charge patients for their assistance directly or indirectly through private health insurance. Some countries (such as Guatemala, Colombia, and Mexico) also have social security hospitals, which are free of charge but open only to people with jobs affiliated to the social security system and their families.
Sources of data
We contacted various institutions in the countries, such as
ministries of health, statistical departments, scientific organisations, social security systems, and hospitals, through representatives of the Pan American Health Organisation. We requested figures for caesarean section at national, regional, or institutional levels. The information obtained came from reports of government health
offices derived from routine statistical surveillance or national
surveys (Argentina, Bolivia, Brazil, Ecuador, Venezuela, Mexico,
Uruguay, Paraguay, El Salvador, Guatemala), the social security
system (Costa Rica, Argentina, El Salvador), committees for
promotion of maternal health (Mexico), private hospitals (Paraguay), and private health insurance companies (Argentina).
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Estimates of national caesarean section rates
We estimated the rates of caesarean section for all Latin American
countries except Nicaragua, where recent figures were unavailable.
National figures were obtained by different approaches according to the
type and source of the retrieved data. Consequently, we formed three
groups of countries: those where national figures were available
through periodic surveillance (Chile, Costa Rica, Cuba, Ecuador,
Guatemala, Uruguay, and Venezuela); those where national figures were
available through special surveys (Bolivia, Colombia, Honduras, Haiti,
Dominican Republic, and Peru); and those where national figures were
not available and had to be estimated from institutional rates and
proportion of institutional deliveries (Argentina, Brazil, El Salvador,
Mexico, Panama, and Paraguay).
Estimates of excess caesarean sections
We adopted 15% as the highest acceptable limit for national
caesarean section rates. This figure was proposed by the World Health
Organisation in 1985 based on the caesarean section rates of some
countries with the lowest perinatal mortality in the
world.18 In 1991, the figure was adopted as a goal for the
year 2000 by the United States Department of Health and Human Services.19 Estimations were made for each country,
calculating the hypothetical number of caesarean sections if the rate
was 15% and subtracting it from the actual number of caesarean sections.
Analysis of data
We calculated Spearman's rank correlation coefficient to measure
the association between the countries' gross national product per
capita, the number of doctors per 10 000 population, and the
proportion of urban population and caesarean section rates. Since
information about gross national product was not available, Cuba was
not included in this analysis.
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Results |
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Table 1 gives information about population, annual births, institutional deliveries, urban population, doctors per 10 000 population, mortality, and caesarean section rates of the countries. Seven countries had caesarean section rates below 15%. The range for the remaining 12 countries was 16.8% to 40.0%. These 12 countries represent 81% of the deliveries in the region. Information about rates of caesarean section in different types of hospitals were available for Argentina, Brazil, Chile, Colombia, Mexico, and Paraguay. In all of them, the proportion of caesarean section in women in private hospitals was much higher than that of women in public hospitals. Three countries had caesarean section rates over 50% in private hospitals (table 1). Countries with caesarean section rates below 15% also showed lower proportions of hospital deliveries or births assisted by skilled attendants (28% to 67%) than countries with caesarean section rates above 15% (59% to 100%).
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A positive and significant correlation was observed between rates of caesarean section and the gross national product per capita (rs=0.746, n=18, P<0.0001; figure), the proportion of urban population (rs=0.730, n=19, P<0.0001), and the number of doctors per 10 000 population (rs=0.690, n=19, P=0.001). All but one of the countries with gross national product per capita below £2800 showed caesarean section rates below 15%, while all but one of the countries with gross national product per capita above £2800 had caesarean section rates above 15%. The exception is Dominican Republic, with a gross national product per capita of £2740 and a caesarean section rate of 25.9%.
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In the 12 countries with caesarean section figures above 15%, around
2.2 million caesarean sections were performed each year. Taking 15% as
the medically justified rate, we calculate that around 850 000
unnecessary caesarean sections were performed each year in the region
(table 2).
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Discussion |
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We had difficulty estimating national rates of caesarean section as national figures were often not available and had to be calculated from different sources of data. Therefore, figures for some of the most populated Latin American countries (such as Brazil, Mexico, and Argentina) cannot be regarded as totally accurate but are the best possible estimates.
For these estimations, we adopted the most conservative approach. We assumed that all non-hospital deliveries were vaginal deliveries and included them in the denominator. When data from the private sector were missing, the national caesarean section rates were based on public hospitals rates, which are generally lower than rates in private hospitals. When multiple sources of caesarean section figures were available for one country (as in Argentina), the lowest figures were used to estimate the national rate.
In the countries where the national caesarean section rates had to be estimated from data from different institutions, estimates are inevitably inaccurate and subject to wide variability. The variability of the estimates calculated from multiple sources (Argentina) or sources with wide coverage (Brazil) was probably smaller than the variability of estimates calculated from only one source (Paraguay) or sources with less coverage.
Relation with socioeconomic indicators
We found a clear positive association between socioeconomic
indicators and the proportion of caesarean sections, a finding that has
been described in previously.
1 6 20
Strong associations
were found between the proportion of caesarean sections and the gross
national product per capita, the number of doctors per 10 000
population, the proportion of urban population, and the proportion of
institutional deliveries. Moreover, in all countries for which the
information was available, the proportion of caesarean sections in
private hospitals was higher than that in public or social security
hospitals. Although higher caesarean section rates are positively
related to higher income and social class, women with low income are at
high obstetric risk. Women assisted in public hospitals are more likely
to be single, less educated, adolescent, and to have a poorer history
than women attending private hospitals.21 No medical
justification exists for the finding that women with low obstetric
risk, and presumably least likely to benefit from a caesarean section,
had higher caesarean section rates.
Limiting caesarean sections
Using the limit of 15% set arbitrarily by the WHO in 1985 but
still accepted by the scientific community,19 we
calculated an excess of over 850 000 caesarean sections a year for
Latin America. This figure represents an unnecessary increased risk for
women and their babies. From the economic perspective, it is a burden
to health systems that work with limited budgets. On the other hand,
the low proportions of caesarean section observed in countries like
Haiti, Guatemala, and Bolivia probably represent lack of appropriate
medical care rather than ideal health care.
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Acknowledgments |
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We thank all focal points of the health promotion and protection division and all country representatives of the Pan American Health Organisation for sending information about caesarean section rates. We also thank Arachu Castro for providing useful information.
Contributors: JMB had the original idea; participated in the design, execution, analysis, and writing of the paper; and is the study guarantor. FA participated in the design of the study; collected, organised, and analysed the data; and participated in writing the paper. FCB participated in the analysis and writing of the paper. SA participated in writing the paper.
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Footnotes |
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Funding: Latin American Centre for Perinatology, Pan American Health Organisation, World Health Organisation.
Competing interests: None declared.
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References |
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| 1. | Shearer E. Cesarean section: medical benefits and costs. Soc Sci Med 1993; 37: 1223-1231. |
| 2. | National Institute of Child Health and Human Development. Cesarean childbirth. Report of a consensus Development Conference. Bethesda, MD: NIH, 1981. |
| 3. | Wolfe S. Unnecessary cesarean sections: curing a national epidemic. Public Citizen Health Research Group 1994; 10: 1-7. |
| 4. | What is the right number of caesarean sections? Lancet 1997; 349: 815[Medline]. |
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Faúndes A, Cecatti JG.
Which policy for caesarean sections in Brazil? An analysis of trends and consequences.
Health Policy Plan
1993;
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33-42 |
| 6. | Barros FC, Vaughan JP, Victora CG, Huttly SRA. Epidemic of caesarean sections in Brazil. Lancet 1991; 338: 167-169[Medline]. |
| 7. | Murray SF, Serani Pradenas F. Cesarean birth trends in Chile, 1986 to 1994. Birth 1997; 24: 258-263[Medline]. |
| 8. | Flamm BL, Berwick DM, Kabcenell A. Reducing cesarean section rates safely: lessons from a "breakthrough series" collaborative. Birth 1998; 25: 117-124[Medline]. |
| 9. | Notzon FC, Cnattingius S, Bergsjö P, Cole S, Taffel S, Irgens L, et al. Cesarean section delivery in the 1980s: international comparison by indication. Am J Obstet Gynecol 1994; 170: 495-504[Medline]. |
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Centers for Disease Control and Prevention.
Rates of cesarean delivery United States, 1993.
MMWR
1995;
44:
303-307[Medline].
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| 11. | Wilkinson C, McIlwaine G, Boulton-Jones C, Cole S. Is a rising caesarean section rate inevitable? Br J Obstet Gynaecol 1998; 105: 45-52[Medline]. |
| 12. | Ballacci F, Medda E, Pinnelli A, Spinelli A. Cesarean delivery in Italy: a European record. Epidemiol Prev 1996; 20: 105-106[Medline]. |
| 13. | Macro International. Demographic health surveys. measure DHS+ www.macroint.com/dhs. (Accessed 16 December, 1998.) |
| 14. | Belitzky R. El nacimiento por cesárea en instituciones latinoamericanas. Montevideo: Centro Latinoamericano de Perinatología y Desarrollo Humano (Pan American Health Organisation), 1988. |
| 15. | Pan American Health Organisation. Health situation in the Americas. Basic indicators 1997. Washington, DC: PAHO, 1997(PAHO/HDP/HDA/97.02.) |
| 16. | Pan American Health Organisation. Health situation in the Americas. Basic indicators 1998. Epidemiol Bull 1998; 19: 10-11[Medline]. |
| 17. | Safe Motherhood. Maternal health around the world. Facts and figures. safemotherhood.org/init_facts.htm. (Accessed 9 June 1999.) |
| 18. | World Health Organisation. Appropriate technology for birth. Lancet 1985; ii: 436-437. |
| 19. | US Department of Health and Human Services, Public Health Service. Healthy people 2000: national health promotion and disease prevention objectives. Washington, DC: DHHS, 1991(PHS 91-50212.) |
| 20. | Gould JB, Davey B, Stafford RS. Socioeconomic differences in rates of cesarean section. N Engl J Med 1989; 321: 233-239[Abstract]. |
| 21. | Belizán JM, Farnot U, Carroli G, Al-Mazrou Y. Antenatal care in developing countries. Paediatr Perinat Epidemiol 1998; 12(suppl 2): 1-3. |
| 22. | Morgenstern H. Ecologic studies. In: Rothman KJ, Greenland S, eds. Modern epidemiology. Philadelphia: Lippincott-Raven, 1998. |
| 23. | De Mello E, Souza C. C-sections as ideal births: the cultural constructions of beneficence and patients' rights in Brazil. Camb Q Health Ethics 1994; 3: 358-366[Medline]. |
(Accepted 13 July 1999)
Elaine Showalter Princeton University Department of
English, Princeton, NJ, USA
Correspondence
to: E Showalter 112075.445{at} compuserve.com
The first woman in England powerful enough to demand
chloroform in childbirth was Queen Victoria. At the end of the 20th
century, medical and social prejudices against women sidestepping their biblical sentence to painful childbirth are still with us. The study on
caesarean section in Latin America establishes that the rate of
caesarean is higher in private hospitals and among a more prosperous
sector of the population. But its conclusions that this rise represents
an "epidemic of caesarean section" that has "no medical
justification" are based on arbitrary guidelines, insufficient data,
and outmoded thinking about women's reproductive needs.
The implication is that wealthy women are wasting the time and
money of healthcare providers because they are evading natural childbirth for the selfish convenience of a caesarean section. Because
higher caesarean rates are related to higher income and social class
does not prove that they are a luxury like plastic surgery. Indeed, the
reasons for the increased rates of caesarean section in western
societies are both medically and socially complex. According to the
1999 Confidential Enquiry into Stillbirths and Deaths in Infancy, more
and more large babies are being born in Britain because of the better
nutrition and health of modern mothers.1 Caesarean section
is safer than ever before. The really serious issues around caesarean
sections can be seen in underdeveloped countries where they are denied
or unavailable to most women, rather than in those western societies
where their rates have increased.
A rigorous assessment would investigate the average weight of
babies, proportional maternal weight gain, the rates of surgical complications and fetal and maternal death, and the contexts of the
medical decision before sounding the alarm. Possibly the increase in
rates in Latin American countries reflects an improvement in medical
services and education. Possibly it reflects better monitoring for
detecting fetal distress.
In a recent article Caroline da Costa noted that "the high rate
of caesarean sections in most western countries is now regarded as a
major public health problem and has spawned much discussion, numerous
publications and meetings, varied recommendations, and some success in
reducing the rate in certain hospitals, although without any agreement
as to what the optimum rate should be, and with some
indications
Competing interests: None declared.
Arachu Castro Center for Population and Development
Studies, Harvard School of Public Health, Harvard,
USA
acastro{at}hsph. harvard.edu
Although safer caesarean sections help reduce
maternal and infant morbidity and mortality, they remain a major
surgical procedure that carries risk, particularly respiratory
complications and neurological impairment for the
newborn.1 When not medically indicated, therefore, a
caesarean section is less safe than a vaginal birth. It also increases
the use of medical and healthcare resources. In addition to these
public health arguments, women's voices need to be included in the
strategies designed to decrease the incidence of caesarean sections.
Belizán et al present a snapshot showing the high proportion of
caesarean sections in Latin America and its association with improved
socioeconomic conditions. This association is linked to women's
increased access to health services and to the increased availability
and use of technical procedures for birth. However, the fact that the
proportion of caesarean sections rises as socioeconomic conditions
improve does not necessarily mean that the quality of care in the
management of labour improves. Actually, it might be otherwise.
Firstly, the systematic use of medical technology, justified by
the underlying idea that a woman's body is not capable of giving birth
without medical intervention, seems to be more directed towards the
convenience of healthcare professionals than the benefit of women in
labour. For healthcare professionals, having the woman under control in
a horizontal position and stuck to the oxytocin perfusion, the epidural
anaesthesia and, although less common in public hospitals in Latin
America, the electronic fetal monitor, creates the impression that she
is being taken care of. But women tend to perceive such an experience
as painful, frightening, and confusing, especially in the many
hospitals where they cannot be accompanied by the person they
choose.2 The medicalisation of birth seems to preclude the
use of less technical, less expensive, and more women centred
approaches to birth such as the provision of psychosocial support
during labour.
Secondly, the increase of caesarean sections does not necessarily mean
that women prefer or request them.
2 3
Our experience in
Mexico is that obstetricians, partly because of personal financial benefits, create the high demand for caesarean sections by offering them to the higher socioeconomic groups as a distinctive way of giving
birth or by presenting them as a frequent outcome in cases of relative
indications for a caesarean section. With time, people from other
social groups start to imitate this trend, assuming that if the more
privileged prefer it, it must be better, and thus it becomes the
standard. As a result, many obstetricians end up being better trained
to perform a caesarean section than to attend births that could have
been safely delivered vaginally. The increase of caesarean sections can
thus be regarded as a process in which women are finally given less
information and less choice and in which obstetricians appropriate the
central role of childbirth at the expense of women.
Finally, "violence" is a strong word, and labelling
unnecessary caesarean sections as form of violence against women could be disturbing. But for many women, a caesarean section that could have
been avoided is a violation of their bodily integrity, just like having
routine episiotomy (or perineal cutting), epidural anesthesia without
consent, non-indicated oxytocin induction or augmentation, multiple and
painful vaginal examination, non-indicated amniotomy, or pubic shaving,
needless exposure of sexual parts in common labour rooms, or even
transcaesarean tubal ligations when women do not understand the
permanent nature of the procedure. In order to give back to women the
central role in childbirth, new guidelines aimed at restricting the use
of caesarean sections and other birth technologies by improving the
quality of care should be welcomed.
Competing interests: None declared.
Hilda Bastian PO Box 569, Blackwood SA
5051, Australia
hilda.bastian{at}flinders.edu.au
I am one of those women who see the experience of birth as
a profoundly important life event. I gave birth to both my children at
home. Some women (including many of the medically
trained1) may think I mortgaged my sexual future and my
continence for something trivial, but I would not agree.
I am also a consumer advocate, with a strong commitment to
individual rights. My personal birth choice was a minority one in my
community, of which many disapprove But national caesarean section rates of up to 40%? In countries where
many women in poor health are receiving little health care? Back in the
early 1980s, caesarean rates of 75% were already being reported in
some urban Brazilian clinics.2 Since then, the national
rate has soared but not women's socioeconomic or sociopolitical
status. That raises two critical questions: is caesarean section for
some Latin American women becoming almost universal? If so, what will
that mean for all women in those societies?
At one level, the trend is not so different from that among at least
some well off women everywhere. Even in the United Kingdom, where the
caesarean section rate is low, a survey of women obstetricians found
that 31% of them would choose a caesarean without any medical indication.1 They would do this for much the same reasons
as Latin American women do3: mostly to avoid genital damage.
Belizán et al have highlighted an international phenomenon. It is
just perhaps more dramatic in countries with "a popular obsession
with maintaining a sexually appealing body."3 Large numbers of women in many wealthy societies starve themselves and take
up smoking to achieve a desired body image. That they would choose
major surgery for similar reasons is no surprise. What, however, is the
role of the medical profession in this phenomenon?
High caesarean section rates are partly a consequence of having a
surgical specialty responsible for care around birth and as yet poorly
understood features of the relationship between private specialists and
pregnant women. Brazilian anthropologist Cecilia de Mello E Souza has
shown how obstetricians appropriated women's fear of labour pain, body
disfigurement, and concern for sexual performance to justify the
profession's own preference for surgical birth.3 She
believes that as a result "health has become secondary to the
production of a sexually attractive body."3
The medical profession has other overall responsibilities here.
Definitive evidence about issues of concern to women (such as pain
before and after birth, postpartum depression, and sexual and
continence outcomes) is lacking. Other issues that narrow women's
choices around childbirth in some countries are not addressed by the
profession. De Mello E Souza points out that tubal ligation is illegal
and thus can be done only surreptitiously during a caesarean in Brazil.
In many hospitals, epidural pain relief is not allowed for vaginal
birth.3
If the fashion for caesarean section spreads beyond healthy women
with small families, this public health problem could grow into
something far worse.1 We saw something similar when upper class women abandoned breast feeding last century. It is poorer families who continue to pay the enormous cost generations later. For a
medical community and society that brings women to the point of
preferring major surgery to childbirth, serious questions need to be
asked
Competing interests: None declared.
website extra: Further details of sources of data for
each country are available on the BMJ's website www.bmj.com
uterine dystocia and fetal distress
not well
defined."2 But, she pointed out, the real issue is the discrepancy in maternal health care for women because of economic, political, or religious factors. The World Health Organisation guidelines of 15% for national caesarean section rates are arbitrarily chosen and need to be reviewed. Women's equal access to quality medical services, rather than assumptions about the proper form of
labour and delivery, should be our central concern.
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References
1.
Boseley S. Problems at birth of larger babies "could be
foreseen." Guardian 1999 June 7:7.
2.
Da Costa C.
A sort of progress.
Lancet
1998;
35:
1202-1203.
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Footnotes
Commentary: increase in caesarean sections may
reflect medical control not women's choice
![]()
References
1.
Bobadilla JL, Walker GJA.
Early neonatal mortality and cesarean delivery in Mexico City.
Am J Obstet Gynecol
1991;
164:
22-28[Medline].
2.
Campero L, García C, Díaz C, Ortiz O, Reynoso S, Langer A.
"Alone, I wouldn't have known what to do": a qualitative study on social support during labor and delivery in Mexico.
Soc Sci Med
1998;
47:
395-403.
3.
Castro A, Heimburger A, Langer A.
Cesarean sections in Mexico: a qualitative study with women and health care professionals.
Mexico: Population Council Regional Office for Latin America and the Caribbean, Safe Motherhood Committee of Mexico, 1998.
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Footnotes
Commentary: "health has become secondary to a
sexually attractive body"
some would even like to outlaw it.
From that position, my commitment lies automatically with women's
individual choices. I do not believe that anyone has the right to
demand women give birth vaginally
just as no one should force me to
have a caesarean.
preferably before women start paying for this trend with
their lives.
![]()
References
1.
Al-Mufti R, McCarthy A, Fisk NM.
Obstetricians' personal choice and mode of delivery.
Lancet
1996;
347:
554[Medline].
2.
Janowitz B, Nakamuth MS, Lins FE, Brown ML, Clopton D.
Cesarean section in Brazil.
Soc Sci Med
1982;
16:
19-25.
3.
De Mello E, Souza C.
C-sections as ideal births: the cultural constructions of beneficence and patients' rights in Brazil.
Camb Q Health Ethics
1994;
3:
358-366.
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Footnotes
© BMJ 1999
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