Table 2 Exploring the associations between serum cotinine levels and cardiovascular disease risk

Log Cotinine

1.05 (1.01, 1.10) 0.0273

1.21 (1.14, 1.27) < 0.0001

1.25 (1.18, 1.33) < 0.0001

Log Cotinine (quartile)

 Q1

Ref

Ref

Ref

 Q2

0.81 (0.63, 1.04) 0.0979

0.97 (0.74, 1.28) 0.8393

0.94 (0.69, 1.27) 0.6733

 Q3

0.89 (0.71, 1.10) 0.2854

1.25 (0.99, 1.60) 0.0654

1.16 (0.89, 1.52) 0.2683

 Q4

1.06 (0.86, 1.31) 0.5698

2.07 (1.63, 2.64) < 0.0001

2.33 (1.77, 3.07) < 0.0001

P for trend

0.6010

< 0.0001

< 0.0001