Table 2 Birth weight and Apgar scores per five-year interval of the study population born 1973–2010
From: Increased risk of pulmonary hypertension following premature birth
Birth weight (grams) | Apgar 1 min | Apgar 5 min | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Birth year | Status | Number | Mean | Missing info | No | Mean | Missing info | No | Mean | Missing info |
1973–1977 | Case | 21 | 3070.0 | 0 | 21 | 9.0 | 0 | 13 | 9.5 | 8 |
Control | 126 | 3477.4 | 0 | 125 | 9.0 | 1 | 107 | 9.4 | 19 | |
Total/p-value | 147 | 0.0037 | 146 | 0.6129 | 120 | 0.6295 | ||||
1978–1982 | Case | 18 | 3491.1 | 0 | 18 | 8.7 | 0 | 17 | 9.0 | 1 |
Control | 107 | 3491.2 | 1 | 106 | 8.8 | 2 | 96 | 9.0 | 12 | |
Total/p-value | 125 | 0.9357 | 124 | 0.4550 | 113 | 0.5960 | ||||
1983–1987 | Case | 16 | 3269.7 | 0 | 16 | 8.4 | 0 | 15 | 9.5 | 1 |
Control | 95 | 3521.2 | 1 | 94 | 8.7 | 2 | 92 | 9.8 | 4 | |
Total/p-value | 111 | 0.1860 | 110 | 0.6410 | 107 | 0.2436 | ||||
1988–1992 | Case | 4 | 3030.0 | 0 | 4 | 8.8 | 0 | 4 | 7.5 | 0 |
Control | 24 | 3416.0 | 0 | 24 | 9.0 | 0 | 24 | 9.7 | 0 | |
Total/p-value | 28 | 0.2001 | 28 | 0.3104 | 28 | 0.0511 | ||||
1993–1997 | Case | 13 | 2801.2 | 1 | 12 | 8.2 | 2 | 12 | 8.5 | 2 |
Control | 84 | 3432.0 | 0 | 84 | 8.7 | 0 | 83 | 9.8 | 1 | |
Total/p-value | 97 | 0.0465 | 96 | 0.2767 | 95 | 0.0008 | ||||
1998–2002 | Case | 12 | 2668.3 | 0 | 11 | 7.4 | 1 | 11 | 8.8 | 1 |
Control | 70 | 3595.0 | 2 | 71 | 8.8 | 1 | 71 | 9.8 | 1 | |
Total/p-value | 82 | 0.0100 | 82 | 0.0078 | 82 | 0.0002 | ||||
2003–2007 | Case | 17 | 2474.1 | 0 | 17 | 6.9 | 0 | 17 | 8.5 | 0 |
Control | 102 | 3587.9 | 0 | 100 | 8.8 | 2 | 100 | 9.8 | 2 | |
Total/p-value | 119 | 0.0010 | 117 | 0.0004 | 117 | 0.0011 | ||||
2008–2010 | Case | 25 | 1923.4 | 1 | 26 | 5.6 | 0 | 26 | 7.5 | 0 |
Control | 156 | 3441.3 | 0 | 153 | 8.5 | 3 | 153 | 9.5 | 3 | |
Total/p-value | 181 | < 0.0001 | 179 | < 0.0001 | 179 | < 0.0001 | ||||