Table 1

Cotinine, 4-ABP-Hb, PAH-albumin, and SCEs in children with and without ETS exposure

Passive exposureCotinine (ng/ml)4-ABP-Hb (pg/g)PAH-albumin (fmol/μg)SCE (per cell)
No: no smoker in household
 Mean0.26423.80.1858.82
 Number25102411
 SD0.5969.220.1421.78
Yes: mother or other household smoker(s)
 Mean2.8734.30.43710.03
 Number84418253
 SD5.6116.90.5422.32
Total
 Mean2.2732.30.3809.82
 Number1095110664
 SD5.0516.10.4932.27
No < Yes, adjusting for ethnicityP < 0.001P < 0.05P = 0.04P = 0.076