International Journal of Hypertension / 2013 / Article / Tab 6

Research Article

Serum Cotinine Levels and Prehypertension in Never Smokers

Table 6

Association between serum cotinine levels and prehypertension among those with serum cotinine <10 ng/mL.

Serum cotinine quartilesNo. at riskPrehypertension casesMultivariable-adjusted
odds ratio (95% confidence interval)*

Quartile 1 (≤0.024 ng/mL)4881651 (referent)
Quartile 2 (0.025–0.054 ng/mL)5241881.21 (0.91, 1.60)
Quartile 3 (0.055–0.223 ng/mL)5081851.38 (0.97, 1.96)
Quartile 4 (≥0.224 ng/mL)3701401.49 (1.06, 2.09)
trend0.0208

*Adjusted for age (years), sex (men, women), ethnicity (non-Hispanic White, non-Hispanic Black, Mexican Americans, others), education categories (<high school, high school, >high school), drinking (never drinker, former drinker, 1 or 2 drink/day, ≥3 drinks/day), BMI (normal weight, overweight, obese), glycohemoglobin (%), total cholesterol (mg/dL), below poverty level (%), and hormone use (ever, never).