Baseline (at randomisation) clinical and demographic characteristics
| High-DHA diet (n=291) | Standard-DHA diet (n=313) | |
|---|---|---|
| Median (IQR) gestational age (weeks) | 30.0 (28.0–31.0) | 30.0 (28.0–31.0) |
| Mean (SD) birth weight (g) | 1307 (420) | 1320 (410) |
| Male sex | 152 (52.2) | 172 (55.0) |
| Singleton birth | 208 (71.5) | 195 (62.3) |
| Birth weight <1250 g | 132 (45.4) | 139 (44.4) |
| Birth weight <10th centile* | 54 (18.6) | 57 (18.2) |
| Mean (SD) birth length (cm) (n=222/238)† | 38.2 (3.9) | 38.2 (4.1) |
| Mean (SD) birth head circumference (cm) (n=248/261)† | 27.2 (2.8) | 27.4 (2.7) |
| Mean (SD) maternal age (years) | 29.9 (5.7) | 30.5 (5.2) |
| Mother smoked during pregnancy | 77 (26.5) | 76 (24.3) |
| Infant received breast milk at trial entry | 271 (93.1) | 291 (93.0) |
| Mother completed secondary education (n=280/293)† | 175 (62.5) | 172 (58.7) |
| Father completed secondary education (n=270/280)† | 146 (54.1) | 155 (55.4) |
Values are numbers (percentage) of infants unless stated otherwise.
*The 10th centile for gestational age in a normal population as reported by Cole et al.31
†Numerical data available for high-DHA and standard-DHA, respectively.
DHA, docosahexaenoic acid.