Table 3.

Patient-level model of risks associated with prescribing or monitoring errors (n = 1777)

FactorUnivariate models (model 1)Multivariable models (model 2)
Odds ratio95% CIP-valueOdds ratio95% CIP-value
Sex
  Malea1.001.00
  Female0.760.56 to 1.020.0640.660.48 to 0.920.013
Number of drugs1.171.13 to 1.20<0.0011.161.12 to 1.19<0.001
Age category, years
  15–64a1.001.00
  0–141.530.99 to 2.350.0531.871.19 to 2.940.006
  65–742.691.73 to 4.20<0.0011.681.04 to 2.730.035
  ≥754.262.81 to 6.47<0.0011.941.19 to 3.190.008
Dispensing practice
  Non dispensinga1.001.00
  Dispensing practice1.050.73 to 1.510.7810.700.26 to 1.880.476
Training practice
  Traininga1.001.00
  Not a training practice1.330.98 to 1.810.0651.390.97 to 2.010.075
Practice size
  5000–10 000a1.001.00
  <5000 patients0.830.58 to 1.170.2810.880.58 to 1.340.553
  >10 000 patients0.740.49 to 1.110.1470.560.31 to 0.990.047
Location
  Urbana1.001.00
  Rural practice1.030.74 to 1.440.8491.060.43 to 2.580.905
  • a Reference group.