Table 1.
Demographic and other characteristics of the 271 children included in the study.
| Characteristic | Result |
|---|---|
| Age | |
| range (years) | 0.1–12.8 |
| median (IQRa) (years) | 5.3 (3.5–7.9) |
| Body weight | |
| range (kg) | 4.1–74.0 |
| median (IQR) (kg) | 19.6 (15.0–26.8) |
| z-scoreb (SDc) (kg) | 0.3 (−0.5–1.0) |
| Sex | |
| boys (%) | 74 |
| Vitamin D | |
| range (nmol/L) | 11–142 |
| median (IQR) concentration (nmol/L) | 54 (40–69) |
| Type of elective intervention | |
| circumcision (%) | 32 |
| adenoidectomy/paracentesis (%) | 21 |
| orchidopexy/hernia repair (%) | 17 |
| other* (%) | 30 |
| Anaesthetic drug used | |
| sevoflurane and nitrous oxide (%) | 89 |
| sevoflurane (%) | 9 |
| intravenous thiopental/propofol (%) | 2 |
| Second-hand smoke exposure | |
| none (%) | 64 |
| one family member (%) | 25 |
| both parents (%) | 11 |
| Daily fruit and vegetable intake | |
| 0–1 portion (%) | 24 |
| 2–4 portions (%) | 69 |
| >5 portions (%) | 7 |
| Weekly fish intake | |
| None (%) | 37 |
| <1 portion (%) | 24 |
| ≥ 1 portion (%) | 39 |
aIQR = inter-quartile range, bz-score = body weight for age, cSD = standard deviation.
*Including: removal of osteosynthetic material, gastroscopy, colonoscopy, deflux injection.