Table 2.
Sample size and covariates for the CCAAPS Caucasian population.
| Variable | Parental Report of SHS | No Parental Report of SHS |
|---|---|---|
|
| ||
| Total children (n) | 160 | 271 |
| Exclusions1 (n) | 14 | 37 |
| Children after exclusions (n) | 146 | 234 |
| Percent male | 54.8% | 54.3% |
| Mean (SD) ng/mg hair cotinineb | 0.139 (0.216) | 0.058 (0.051) |
1
Individuals without an available hair cotinine level or more than 20% of their total SNPs missing were excluded.
b
Hair cotinine was significantly higher in children whose parent(s) reported SHS exposure (p < 0.0001).