Skip to main content

Table 2 Associations between social class, body mass index and smoking and prevalence of cardiovascular disease (CVD)

From: Chronic exposure to outdoor air pollution and diagnosed cardiovascular disease: meta-analysis of three large cross-sectional surveys

   1994 1998 2003
   % CVD Adjusted* OR (95% CI) % CVD Adjusted* OR (95% CI) % CVD Adjusted* OR (95% CI)
Registrar General's social class classification I 8.5 1.00 8.2 1.00 9.4 1.00
  II 10.8 1.26 (0.86, 1.85) 10.6 1.35 (0.94, 1.93) 11.2 1.28 (0.92, 1.79)
  IIIa 11.7 1.17 (0.78, 1.75) 14.0 1.55 (1.06, 2.27) 14.6 1.55 (1.09, 2.20)
  IIIb 13.3 1.45 (1.00, 2.11) 13.8 1.69 (1.18, 2.41) 13.9 1.43 (1.03, 1.99)
  IV 14.5 1.53 (1.03, 2.27) 16.9 1.98 (1.37, 2.86) 16.2 1.76 (1.24, 2.49)
  IV 13.0 1.35 (0.87, 2.11) 19.0 2.40 (1.59, 3.63) 22.1 2.45 (1.64, 3.64)
BMI** (kg m-2) <20 8.4 1.00 11.4 1.00 12.6 1.00
  20–24 9.3 1.32 (0.81, 2.16) 10.4 1.06 (0.67, 1.67) 9.7 0.72 (0.44, 1.20)
  25–29 13.2 1.84 (1.14, 2.98) 12.6 1.23 (0.79, 1.92) 12.2 0.84 (0.51, 1.37)
  30–34 13.3 1.91 (1.15, 3.16) 14.0 1.49 (0.94, 2.36) 14.6 1.08 (0.65, 1.79)
  35+ 13.8 2.34 (1.32, 4.12) 15.7 2.07 (1.24, 3.46) 15.7 1.51 (0.88, 2.61)
Smoking Never 9.2 1.00 10.4 1.00 10.9 1.00
  Ex- 15.6 1.52 (1.28, 1.82) 17.0 1.45 (1.24, 1.70) 17.1 1.36 (1.16, 1.59)
  Current 9.5 1.19 (0.95, 1.49) 10.9 1.27 (1.04, 1.56) 11.5 1.38 (1.12, 1.70)
  1. *adjusted for age and sex **Body Mass Index