From: Serum catalase, thiol and myeloperoxidase levels in children passively exposed to cigarette smoke
 |  | Min–max | Mean ± SD |
---|---|---|---|
Age (years) |  | 4–17 | 10.17 ± 3.61 |
BMI (kg/m2) |  | 12.89–28.40 | 17.92 ± 3.42 |
 |  | n | % |
Sex | Male | 29 | 40.8 |
Female | 42 | 59.2 | |
 | < 1000 TL | 20 | 28.2 |
Family income (TL) | 1000–2000 TL | 37 | 52.1 |
 | > 2000 TL | 14 | 19.7 |