Odds ratios of general practitioners seeing drug industry representatives at least once a week in univariable and adjusted multivariable logistic regression models

Univariable model*Adjusted multivariable model
VariableResponse categoryOdds ratio (95% CI)P valueOdds ratio (95% CI)P value
Process of consultation
When faced with a patient who expects a prescription (which is not clinically indicated) my usual response is to:Agree readily or reluctantly1.001.000.012
Discuss, but not prescribe0.63 (0.49 to 0.82)<0.0010.63 (0.44 to 0.90)
I feel that a patient consultation that ends with me giving advice only is:Very satisfactory0.51 (0.39 to 0.66)0.56 (0.38 to 0.82)0.003
Unsatisfactory or satisfactory1.00<0.0011.00
When a new drug becomes available what I do most commonly is:Seek published findings of effectiveness0.38 (0.25 to 0.57)<0.0010.54 (0.36 to 0.82)<0.001
Wait and see what colleagues do0.33 (0.22 to 0.48)0.39 (0.24 to 0.65)
Use on a few patients and monitor1.001.00
In what proportion of your consultations do you feel frustrated by having too little time(Odds ratio per 10 unit increase)1.05 (1.00 to 1.14)0.0741.05 (0.97 to 1.13)0.212
Sources of information about prescribed drugs
When I receive written promotional material from drug companies I usually:Never read it0.28 (0.20 to 0.38)<0.0010.44 (0.27 to 0.72)0.001
Read some or all of it1.001.00
I find myself reading drug adverts in journals:Rarely or never0.33 (0.25 to 0.42)<0.0010.41 (0.28 to 0.59)<0.001
Sometimes or often1.001.00
When I am uncertain about an aspect of drug treatment, my first action, before I write the prescription is to:Check in BNF0.06 (0.46 to 0.77)<0.0010.88 (0.59 to 1.31)0.535
I follow the advice of hospital consultants in deciding which drugs to use for my patients:Very often or often1.001.00
Sometimes, rarely, or never0.80 (0.62 to 1.03)0.0780.84 (0.57 to 1.23)0.357
Attitudes towards criticism of prescribing practices
I avoid questioning colleagues who appear to be prescribing inappropriately:Strongly disagree or disagree0.67 (0.51 to 0.87)0.0030.77 (0.52 to 1.14)0.191
Strongly agree, agree, or neutral1.00---
Singlehanded general practitioner2.33 (1.46 to 3.70)<0.001
I find criticism of my prescribing habits by my colleagues:Very useful or useful0.62 (0.46 to 0.84)0.0021.05 (0.67 to 1.63)0.842
Very unhelpful, unhelpful, or neutral1.001.00
General practitioner and practice factors
SexFemale0.58 (0.39 to 0.87)0.009
Log low income scheme index1.55 (1.06 to 2.28)0.026
No of general practitioners in practice11.00
2-40.96 (0.48 to 1.93)0.007
≥50.49 (0.24 to 1.00)
Are you a general practitioner trainer?No1.00
Yes0.34 (0.20 to 0.59)<0.001
Age group (in years)(<31, 31-35, 36-40, 41-45, 46-50, 51-55, 56- 60, 61-65, >65: odds ratio per age group step)1.14 (0.97 to 1.34)0.101
Dispensing statusNo1.00
Yes0.31 (0.11 to 0.87)0.026
Occupational commitmentFull time1.00
Part time0.56 (0.33 to 0.96)0.034
Length of service<5 years1.00
5-10 years1.04 (0.50 to 2.14)0.548
11-20 years0.87 (0.51 to 1.48)
>20 years1.36 (0.56 to 3.30)
Funholding statusNo1.00
Yes1.01 (0.65 to 1.56)0.982
  • * Univariable model for “When a new drug becomes available…” based on 916 responses. All other univariable models based on about 1090 responses with some variability (1069-1095) due to item non-response.

  • † Adjusted multivariable model based on 768 responses. Adjustment was made for all variables in the model.

  • ‡ A measure of deprivation based on the proportion of prescribed items that are exempt from prescription charges under the low income scheme.3