Table 1 Characteristics of 90 participating child survivors
| Â | n (%) |
|---|---|
Maternal highest education level | |
 Postgraduate qualification | 14 (15.9) |
 Bachelor’s degree | 24 (27.3) |
 Diploma/certificate | 40 (45.4) |
 Secondary school | 10 (11.4) |
 Missing | 2 |
Plurality | |
 Twins | 89 (98.9) |
 Triplets | 1 (1.1) |
Sex | |
 Female | 51 (56.7) |
 Male | 39 (43.3) |
Donor/recipient status | |
 Donor | 36 (40.0) |
 Recipient | 48 (53.3) |
 Bystander triplet | 1 (1.1) |
 Reverse | 5 (5.6) |
Gestation of laser (weeks) | |
  < 20 | 40 (44.4) |
 20 +  | 50 (55.6) |
Year of laser | |
 2006–8 | 11 (12.2) |
 2009–11 | 24 (26.7) |
 2012–14 | 25 (27.8) |
 2015–17 | 30 (33.3) |
Birth gestation | |
 37 + weeks | 0 (0.0) |
 32–36 weeks | 48 (53.3) |
 28–31 weeks | 37 (41.1) |
  < 28 weeks | 5 (5.6) |
Time in special care | |
 Not admitted | 2 (2.2) |
  < 1 week | 3(3.3) |
 1–4 weeks | 30 (33.3) |
 4–12 weeks | 36 (40.0) |
  > 12 weeks | 19 (21.1) |
Ventilation time | |
 None needed/unsure | 39 (43.3) |
  < 1 week | 31 (34.4) |
 1–4 weeks | 7 (7.8) |
 4–12 weeks | 7 (7.8) |
  > 12 weeks | 6 (6.7) |
Major congenital anomalies | |
 None | 79 (87.8) |
 One or more | 11 (12.2) |
Co-multiple survival | |
 Co-twin survived | 74 (82.2) |
 Co-twin died | 15 (16.7) |
 Co-triplets died | 1 (1.1) |
Timing of co-multiple demise | |
 Antenatal | 14 (87.5) |
 Neonatal | 1 (6.2) |
 Postneonatal | 1 (6.2) |
 Not disclosed | 1 |
Age at interview | |
 2.5–4.9 years | 22 (24.4) |
 5.0–9.9 years | 46 (51.1) |
 10 + years | 22 (24.4) |