Table 3– Logistic regression model in male and female nonsmokers combined, comparing arsenic skin lesions with the primary outcome variable of the presence or absence of dyspnoea
Independent variablesAdjusted OR (95% CI)p-value
Skin lesions
 No: reference1.00
 Yes2.24 (1.52–3.30)<0.001
Age1.03 (1.02–1.04)<0.001
Education0.96 (0.94–0.99)0.004
Sex#1.77 (1.32–2.36)<0.001
Systolic BP1.00 (0.99–1.01)0.385
BMI group
 11.19 (0.98–1.45)0.079
 21.27 (0.92–1.76)0.148
  • BP: blood pressure; BMI: body mass index. Similar results were obtained when females and males were analysed separately. #: the reference for sex was male; : BMI categorised as low (<18.5 kg·m−2; group 1) and high (≥25 kg·m−2; group 2).