Table 1.
Descriptive Statistics for sample included in these analyses.
| Twin pairs | N (%) or Mean (SD) |
|---|---|
| Total | 1027 pairs (2054 children) |
| Zygosity | |
| MZ1 pairs | 346 (34) |
| DZ1 pairs | 681 (66) |
| Sex of pairs | |
| MZ Male-Male | 176 (17.2) |
| DZ Male-Male | 165 (16.1) |
| MZ Female-Female | 169 (16.5) |
| DZ Female-Female | 199 (19.4) |
| DZ Opposite Sex | 316 (30.8) |
| Gestational age (weeks) | 36.26 (2.43) |
| Weight at birth (kg) | 2.46 (0.54) |
| Weight at birth SDS 1 | −0.58 (0.92) |
| BMI 1 SDS at 5 years | −0.22 (1.10) |
| Age at 5 year questionnaire (years) 1 | 5.15 (0.13) |
| Emotional Overeating at 5 years | 1.56 (0.51) |
| Emotional Undereating at 5 years | 2.66 (0.84) |
1MZ: Monozygotic; DZ: Di-zygotic; SDS: Standard Deviation Score; BMI: Body Mass Index Age at 5 year questionnaire: Exact age when questionnaire was filled in was calculated using the date of birth of the twins and the date when the questionnaire was filled in.