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Table 1 Characteristics of questionnaire respondents with or without a regular western doctor

From: Differences in antibiotic use between patients with and without a regular doctor in Hong Kong

  aWith a regular doctor Without a regular doctor χ 2 test Adjusted Odds ratiob (95 % CI) Multivariable logistic regression p-value
Age    χ 2 = 0.213, P = 0.899   <0.001
   <40 year 426 (31.6 %) 283 (32.2 %)   1.00  
   40–64 year 813 (59.8 %) 517 (58.9 %)   1.26 (0.99,1.60)  
   ≥65 year 120 (8.8 %) 78 (8.9 %)   3.14 (1.92,5.20)  
Sex    χ 2 = 0.897, P = 0.344   0.17
   Male 499 (34.4 %) 342 (36.3 %)   1.00  
   Female 951 (65.6 %) 600 (63.7 %)   1.17 (0.93,1.46)  
Education    χ 2 = 10.461, P = 0.005   0.71
   Primary or below 236 (16.5 %) 185 (19.9 %)   1.00  
   Secondary 726 (50.7 %) 494 (53.1 %)   0.87 (0.61,1.22)  
   Tertiary 469 (32.8 %) 251 (27.0 %)   0.89 (0.59,1.33)  
Income group    χ 2 = 46.710, P < 0.0001   <0.0001
   <HK$10,000 188 (16.9 %) 197 (28.0 %)   1.00  
   $10,000-24,999 398 (35.9 %) 275 (39.0 %)   1.50 (1.10,2.04)  
   ≥$25,000 523 (47.2 %) 232 (33.0 %)   2.08 (1.49,2.90)  
Healthcare system attended    χ 2 = 203.82, P < 0.0001   <0.0001
   Private 1248 (88.6 %) 570 (63.8 %)   1.00  
   Public 160 (11.4 %) 324 (36.2 %)   0.18 (0.13,0.23)  
  1. aSome data in the categories were missing due to respondents’ refusal to answer
  2. bThe odds ratio here is defined as the ratio of the odds of having a regular doctor among those with a regular doctor to those without adjusted for age, sex, education, income group and healthcare system