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Table 2 Unadjusted and adjusted response rates based on provider characteristics

From: Comparison of up-front cash cards and checks as incentives for participation in a clinician survey: a study within a trial

Characteristic N N (%) responded Unadjusted p-value* Adjusted OR (95% CI)** Adjusted p-value**
Incentive    0.046   
 Cash card 155 65 (41.9%)   Ref  
 Check 148 80 (54.1%)   1.61 (1.01, 2.59) 0.047
Sex    0.04   
 Male 133 54 (40.6%)   Ref  
 Female 170 91 (53.5%)   1.37 (0.84, 2.25) 0.20
City    0.33   
 Boston 96 53 (55.2%)   Ref  
 New York 87 37 (42.5%)   0.62 (0.34, 1.15) 0.13
 Los Angeles 68 30 (44.1%)   0.64 (0.33, 1.24) 0.19
 Philadelphia 52 25 (48.1%)   0.73 (0.36, 1.46) 0.37
Provider type    0.04   
 Physician 293 137 (46.8)   Ref  
 Advanced practice provider 10 9 (80.0)   4.80 (0.94, 24.39) 0.06
Specialty    0.65   
 Internal Medicine 207 96 (46.4)   1.24 (0.62, 2.50) 0.54
 Obstetrics & Gynecology 48 27 (56.3)   1.67 (0.69, 4.05) 0.26
 Family Medicine 44 20 (45.5)   Ref  
 Other 4 2 (50.0)   1.55 (0.19, 12.58) 0.68
  1. *Chi-square tests
  2. **multivariable logistic regression