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Table 2 BMI group and smoking status by SMI status

From: Patterns of physical co-/multi-morbidity among patients with serious mental illness: a London borough-based cross-sectional study

  Non-SMI (16+ yrs) n = 304,297 SMI (16+ yrs) n = 4,346 Unadjusted OR (95% CI) Adjusted OR1(95% CI)
  N % n %   
BMI group       
Underweight 8118 3.5 113 2.8 1.22 (1.01 - 1.47)* 1.29 (1.05 - 1.58)*
Desirable 116991 50.2 1337 33.3 1.00 1.00
Overweight 68312 29.3 1292 32.2 1.65 (1.50 - 1.83)*** 1.31 (1.18 - 1.45)***
Obese 35465 15.2 1105 27.5 2.73 (2.47 – 3.01)*** 1.95 (1.78 - 2.14)***
Morbidly obese 4260 1.8 171 4.3 3.51 (2.98 - 4.14)*** 2.63 (2.23 - 3.09)***
Smoking       
Smoker 68188 24.1 1883 43.7 2.79 (2.51 – 3.10)*** 3.19 (2.86 - 3.55)***
Non-smoker 170365 60.1 1685 39.1 1.00 1.00
Ex-smoker 44942 15.9 737 17.1 1.66 (1.50 - 1.84)*** 1.55 (1.38 - 1.75)***
  1. Numbers (n), percentages (%), and odds ratios (OR) with 95% confidence intervals (CI) are shown.
  2. Ordinal logistic regression. CIs based on robust standard errors, clustered by GP practice.
  3. *p < .05 ***p < .001.
  4. 1Adjusted for socio-demographic characteristics.