| Category | Standard,n = 57 | Pragmatic,n = 56 | p Value* |
| Age (months), median (IQR) | 4 (4–6) | 4 (4–6) | 0.65 |
| Male/female (% male) | 22/35 (39) | 36/20 (64) | 0.01 |
| Birth order, median (IQR) | 2 (1–3) | 2 (1–2) | 0.20 |
| Analgesic use, n (%) | 11 (19) | 6 (11) | 0.20 |
Values are median (IQR) or frequency (%). IQR, interquartile range.
*Mann Whitney U test or χ2 test, as appropriate.