|
|
Table 2.
Effect of zinc on incidence of diarrhoea and
acute lower respiratory
infection
|
|
Disease
|
Intervention
|
Comparison
|
Rate
ratio (95% CI)*
|
Difference in mean rates (95%
CI)
|
| Diarrhoea: |
|
|
|
|
| Periods
observed |
20 699 |
21 089 |
|
|
| Periods with diarrhoea |
3
278 |
3 947 |
|
|
| Unadjusted incidence
(%) |
15.8 |
18.7 |
0.85 (0.76 to 0.96) |
2.9 (0.8 to 5.1) |
| Acute lower respiratory infection: |
|
|
|
| Periods
observed |
20 699 |
21 089 |
|
|
| Periods with acute lower
respiratory infection |
1 543 |
1 700 |
|
|
| Unadjusted
incidence (%) |
7.5 |
8.1 |
0.93 (0.78 to 1.10) |
0.7 ( 0.7 to
2.0) |
|
|
*
Based on individual level analysis using random effect Poisson
regression model. Adjusted for child's age, sex, and birth order,
mother's education, household homestead land size, baseline cluster
level diarrhoea admission rates, and intra-cluster correlation.
|
|
Based on cluster level t test analysis. Differences
in mean rates expressed per 100 child years of observation. Adjusted
for child's age, sex, and birth order, mother's education, household
homestead land size, and baseline cluster level diarrhoea admission
rates.
|
|