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Table 3 Crude and adjusted odds ratios (OR) with 95 % confidence intervals (CI) for the association between characteristics of single-handed practices and initiating long-term treatment with PPIs

From: General practice variation when initiating long-term prescribing of proton pump inhibitors: a nationwide cohort study

  Crude OR (95 % CI) P-value Adjusted OR* (95 % CI) P-value
Patients per GP
 <1350 1 . 1 .
 1350-1575 0.96 (0.84;1.11) 0.60 1.02 (0.88;1.17) 0.81
 1576-1750 0.95 (0.83;1.09) 0.45 1.07 (0.92;1.23) 0.38
 >1750 0.91 (0.80;1.03) 0.13 1.04 (0.91;1.20) 0.53
Practice location
 Capital area 1 . 1 .
 Provincial city 1.08 (0.98;1.19) 0.13 1.06 (0.96;1.17) 0.29
 Rural area 1.18 (1.06;1.31) <0.001 1.05 (0.94;1.18) 0.37
GP gender
 Male 1 . 1 .
 Female 0.79 (0.72;0.87) <0.001 0.89 (0.81;0.99) 0.03
GP age group
 Under 45 years 1 . 1 .
 45-49 years 1.02 (0.80;1.30) 0.88 0.95 (0.73;1.22) 0.67
 50-54 years 1.02 (0.82;1.27) 0.83 0.96 (0.77;1.21) 0.74
 55-59 years 1.19 (0.97;1.45) 0.10 1.11 (0.90;1.37) 0.35
 60-64 years 1.39 (1.14;1.71) <0.001 1.26 (1.02;1.56) 0.03
 65 years or above 1.38 (1.12;1.71) <0.001 1.29 (1.03;1.62) 0.03
Training practice
 No 1 . 1 .
 Yes 0.96 (0.87;1.07) 0.46 0.96 (0.86;1.07) 0.45
  1. *Estimates adjusted for practice characteristics and patient characteristics in terms of age, gender, specific gastrointestinal morbidity, socioeconomic status (income, educational level, cohabitation status), comedication with non-steroidal anti-inflammatory drugs (NSAIDs), antiplatelet drugs, anticoagulants, selective serotonine reuptake inhibitors (SSRIs) and comorbidity
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