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Table 4 Incidence rate ratios (IRR) of the number of triggered reminders by negative binomial regression models using a generalized estimation equation

From: Patient-specific computer-based decision support in primary healthcare—a randomized trial

  Unadjusted Adjustede
  IRR (95% CI) SEd p-value IRR (95% CI) SEd p-value
Indiv_MO12a
 Group 1.002 (0.895 – 1.121) 0.057 0.98 1.004 (0.903 – 1.116) 0.054 0.94
 Time 1.014 (1.001 – 1.023) 0.005 0.002 1.017 (1.008 – 1.026) 0.005 <0.001
 Time2 1.002 (1.001 – 1.003) 0.0003 <0.001 1.002 (1.001 – 1.003) 0.0003 <0.001
 Group × Time 1.001 (0.995 – 1.008) 0.003 0.73 1.002 (0.995 – 1.009) 0.003 0.56
Indiv_MO6b
 Group 1.011 (0.913 – 1.120) 0.053 0.84 1.008 (0.923 – 1.101) 0.045 0.86
 Time 1.038 (1.030 – 1.046) 0.004 <0.001 1.044 (1.036 – 1.052) 0.004 <0.001
 Group × Time 0.990 (0.980 – 1.001) 0.005 0.066 0.989 (0.978 – 0.9997) 0.005 0.044
Indiv_MO3c
 Group 0.990 (0.895 – 1.094) 0.051 0.84 1.013 (0.926 – 1.108) 0.046 0.77
 Time 1.036 (1.024 – 1.050) 0.007 <0.001 1.046 (1.031 – 1.062) 0.008 <0.001
 Group × Time 0.998 (0.980 – 1.017) 0.009 0.86 0.996 (0.975 – 1.018) 0.011 0.74
  1. aIndiv_MO12 for the study patients with 12 months’ individual follow-up using exchangeable working correlation structure.
  2. bIndiv_MO6 for the study patients with six months’ individual follow-up using exchangeable working correlation structure.
  3. cIndiv_MO3 for the study patients with three months’ individual follow-up using the auto-regressive (AR1) working correlation structure.
  4. dSemi-Robust Huber/White sandwich estimated standard errors.
  5. eAdjusted for age, gender, number of diagnoses and number of medications.