Table 1.

Descriptive statistics for cotinine a by smoking and SHS categories (n = 859), controlling for country, age, sex, and BMI (model 1)

Categoryn = 859Adjusted cotinine mean (nmol/L)Standard error95% confidence limits
NeSNP1252.980.392.21–3.74
NeSP1296.050.564.95–7.15
FSNP1143.810.672.51–5.12
FSP379.662.165.42–13.90
CS4541286.8353.761181.45–1392.20
  • aTo convert nmol/L to ng/mL divide cotinine mean by the factor 5.68.