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Table 3 Patient demographics and independent variables

From: Patient factors associated with SSRI dose for depression treatment in general practice: a primary care cross sectional study

  n = 2662 Unadjusted odds ratio (95% CI) p-value
Mean Age ± SD (range) years 45 ± 13 (18 to 70) 1.00 (0 .99 to 1.01) 0.85
Male (%) 884 (33.2) 1  
Female (%) 1778 (66.8) 1.03 (0.86 to 1.23) 0.734
Deprivation (%)
  SIMD quintile 1(least deprived) 248 (9.3) 1  
  SIMD quintile 2 322 (12.1) 1.17 (0.80 to 1.72) 0.41
  SIMD quintile 3 167 (6.3) 1.67 (1.08 to 2.58) 0.021
  SIMD quintile 4 522 (19.6) 1.38 (0.98 to 1.94) 0.068
  SIMD quintile 5 (most deprived) 1364 (51.2) 1.55 (1.11 to 2.16) 0.009
  SIMD unknown (not in model) 39 (1.5)   
Co-morbidities (%)
  0 1728 (64.9) 1  
  1 665 (25.0) 1.10 (0.90 to 1.33) 0.356
  ≥2 269 (10.1) 1.18 (0.90 to 1.54) 0.238
Current Smoking Status (%)
  Non-smoker 1581 (59.4) 1  
  Smoker 1050 (39.4) 1.13 (0.95 to 1.34) 0.165
  Smoking status unknown (not in model) 31 (1.2)   
SSRI use (%)
  ADM for <2 y (%) 1909 (71.7) 1  
  Same ADM for ≥2 y 753 (28.3) 1.80 (1.49 to 2.17) <0.001
Practice (% practice pop.)
  1 82 (2.2) 1  
  2 265 (2.7) 1.98 (1.09 to 3.57) 0.024
  3 242 (3.6) 1.26 (0.68 to 2.35) 0.461
  4 191 (4.4) 3.26 (1.77 to 5.99) <0.001
  5 372 (6.5) 1.50 (0.84 to 2.69) 0.171
  6 201 (5.9) 2.69 (1.47 to 4.94) 0.001
  7 224 (5.7) 2.20 (1.21 to 4.01) 0.01
  8 322 (6.4) 1.81 (1.01 to 3.24) 0.047
  9 181 (5.8) 3.80 (2.06 to 7.01) <0.001
  10 302 (8.0) 2.32 (1.29 to 4.18) 0.005
  11 280 (9.3) 3.54 (1.96 to 6.38) <0.001
  1. Odds ratio: unadjusted. CI: 95% confidence interval. SD: standard deviation. SIMD: Scottish Index of Multiple Deprivation. SSRI: selective serotonin re-uptake inhibitor. ADM: antidepressant medicine.
  2. Co-morbidities: Individuals had one or more of the following: asthma, COPD, cardiovascular disease, stroke, diabetes mellitus and/or hypertension.