TABLE 2.
Demographic characteristics of the per-protocol population1
| Control IMF (n = 83) | Concept IMF (n = 91) | Breastfed (n = 77) | |
|---|---|---|---|
| Sex, n (%) | |||
| Male | 40 (48%) | 44 (48%) | 38 (49%) |
| Female | 43 (52%) | 47 (52%) | 39 (51%) |
| Country, n (%) | |||
| Belgium | 44 (53%) | 42 (46%) | 30 (39%) |
| France | 4 (5%) | 6 (7%) | 0 (0%) |
| Singapore | 3 (4%) | 3 (3%) | 12 (16%) |
| Netherlands | 32 (39%) | 40 (44%) | 35 (46%) |
| Age at baseline, n (%) | |||
| ≤14 d | 64 (77%) | 65 (71%) | 26 (34%) |
| ˃14 d | 19 (23%) | 26 (29%) | 51 (66%) |
| Median, d | 4 (3, 14) | 5 (3, 15) | 22 (4, 28) |
| Birth characteristics | |||
| Weight, g | 3360 (3040, 3560) | 3335 (3085, 3568) | 3370 (3140, 3635) |
| Length, cm | 49 (48, 51) | 50 (48, 51) | 50 (49, 51) |
| Head circumference, cm | 34 (34, 35.5) | 34.5 (33.5, 35.5) | 34.5 (33.5, 35.5) |
| Vaginal delivery, n (%) | 63 (76%) | 57 (63%) | 57 (74%) |
| Caesarean section, n (%) | 20 (24%) | 34 (37%) | 20 (26%) |
| Gestational age, wk | 39.6 (38.4, 40.0) | 39.6 (38.4, 40.1) | 39.6 (38.7, 40.9) |
| Parental characteristics | |||
| Maternal age, y | 30 (24, 34) | 31 (27, 35) | 31 (29, 34) |
| Maternal university education, yes, n (%) | 33 (40%) | 33 (36%) | 50 (65%) |
| Maternal BMI, kg/m2 | 23.6 (21.2, 25.6) | 23.4 (21.5, 29.1) | 23.6 (21.0, 27.1) |
| Paternal BMI, kg/m2 | 25.6 (23.2, 27.8) | 24.8 (23.1, 27.8) | 24.8 (23.4, 27.4) |
1
Values are n (%) or median (IQR). IMF, infant milk formula.