Table 3

The association between clinical competence scores, the odds of opioid prescribing and prescribed morphine milligram equivalent (MME) dose by physician gender per 10% increase in score

Score×gender interactionOdds of prescribing an opioid for the 65 012 patientsMME opioid dose prescribed for the 9870 patients
OR (95% CI)P valueEstimate (95% CI)P value
Clinical competence score
 Male0.99 (0.92 to 1.07)0.78890.60 (−1.26 to 2.46)0.5272
 Female0.84 (0.75 to 0.94)0.0019−1.37 (−3.94 to 1.20)0.2965
History and physical examination
 Male0.99 (0.93 to 1.05)0.66000.50 (−1.28 to 2.29)0.5820
 Female0.92 (0.84 to 1.00)0.0511−0.95 (−3.03 to 1.13)0.3724
Diagnosis and management
 Male0.99 (0.95 to 1.03)0.52371.05 (0.01 to 2.09)0.0482
 Female0.92 (0.86 to 0.98)0.0102−0.92 (−2.37 to 0.53)0.2120
Communication score
 Male1.01 (0.96 to 1.07)0.63871.23 (−0.08 to 2.54)0.0651
 Female0.90 (0.84 to 0.97)0.00620.69 (−1.11 to 2.49)0.4519
English proficiency
 Male1.00 (0.97 to 1.03)0.93400.43 (−0.43 to 1.29)0.3273
 Female0.97 (0.93 to 1.01)0.17150.28 (−0.82 to 1.38)0.6216
Interpersonal skills
 Male1.03 (0.97 to 1.08)0.34930.99 (−0.36 to 2.34)0.1523
 Female0.91 (0.85 to 0.98)0.0123−0.10 (−1.84 to 1.65)0.9152
  • Models were adjusted for physician’s gender, citizenship, specialty, region of practice, age, prescribed physio-NSAID before opioid, score and patient confounder score.

  • P value for gender×clinical competence score interaction opioid prescription: 0.04; p value for gender×communication score opioid prescription: 0.009; p value for gender×diagnosis and management score and MME dose: 0.03.

  • NSAID, non-steroidal anti-inflammatory drug.