Table 4 Neonatal outcomes of liveborn ART and non-ART twins, Australia, 2007–2011
Total | No. | % | OR (95% CI) | AORa (95% CI) | AORb (95% CI) | |
|---|---|---|---|---|---|---|
Apgar score at 5 min < 7 | ||||||
Non-ART | 14,718 | 556 | 3.8 | 1.00 | ||
ART | 4506 | 169 | 3.8 | 0.99 (0.83–1.18) | 1.24 (1.02–1.52) | 1.22 (1.01–1.50) |
Preterm | ||||||
Non-ART | 14,734 | 8281 | 56.2 | 1.00 | 1.00 | |
ART | 4516 | 2764 | 61.2 | 1.23 (1.15–1.32) | 1.13 (1.05–1.22) | 1.13 (1.05–1.22) |
Low birth weight | ||||||
Non-ART | 14,728 | 7415 | 50.3 | 1.00 | 1.00 | |
ART | 4515 | 2474 | 54.8 | 1.20 (1.12–1.28) | 1.13 (1.05–1.22) | 1.11 (1.03–1.20) |
Resuscitation | ||||||
Non-ART | 14,727 | 7038 | 47.8 | 1.00 | 1.00 | |
ART | 4514 | 2569 | 56.9 | 1.44 (1.35–1.54) | 1.26 (1.17–1.36) | 1.29 (1.20–1.39) |
Admission to intensive or special care nursery | ||||||
Non-ART | 14,355 | 8626 | 60.1 | 1.00 | 1.00 | |
ART | 4445 | 2945 | 66.3 | 1.30 (1.22–1.40) | 1.08 (1.00–1.17) | 1.09 (1.01–1.18) |
Length of infant stay ≥5 days in hospital | ||||||
Non-ART | 14,733 | 10,084 | 68.4 | 1.00 | 1.00 | |
ART | 4516 | 3683 | 81.6 | 2.04 (1.88–2.21) | 1.06 (0.97–1.17) | 1.04 (0.95–1.14) |
Neonatal death | ||||||
Non-ART | 14,734 | 262 | 1.8 | 1.00 | 1.00 | |
ART | 4516 | 93 | 2.1 | 1.16 (0.92–1.48) | 1.32 (1.01–1.73) | 1.31 (1.01–1.72) |
Any adverse outcome | ||||||
Non-ART | 14,734 | 13,106 | 89.0 | 1.00 | 1.00 | |
ART | 4516 | 4304 | 95.3 | 2.52 (2.18–2.92) | 1.28 (1.09–1.50) | 1.25 (1.07–1.47) |