Table 2 Basic demographic characteristics of newborns in the neonatal blood transfusion cohort [M(max, min)]
From: Retrospective cohort study of neonatal blood transfusion in China
|  |  |  < 1500 g | 1500-2500 g |  ≥ 2500 g | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | Â | RBT | NRBT | P | RBT | NRBT | P | RBT | NRBT | P |
Total (n) | Â | 263 | 1054 | Â | 1104 | 297 | Â | 1025 | 178 | Â |
Gender | Male | 148 | 552 | 0.257 | 626 | 189 | 0.032 | 610 | 107 | 0.892 |
| Â | Female | 115 | 502 | 478 | 108 | 415 | 71 | |||
Birth weight (g) |  | 1235 (530–1490) | 1226 (630–1498) | 0.817 | 1813 (1500–2480) | 1760 (1500–2490) | 0.147 | 3025 (2500–5500) | 3175 (2500–8600) | 0.002 |
Birth length (cm) |  | 38 (27–54) | 38 (29–53) | 0.486 | 43 (28–60) | 43 (32–53) | 0.017 | 50 (32–57) | 50 (42–56) | 0.044 |
Head circumference (cm) |  | 28 (21–47) | 28 (18–40) | 0.992 | 30 (21–41) | 30 (21–49) | 0.766 | 34 (23–48) | 34 (31–44) | 0.043 |
Admission weight (g) | Â | 1265 | 1250 | 0.684 | 1870 | 1750 | 0.001 | 3040 | 3100 | 0.291 |
Apgar score | 1Â min | 8 | 8 | 0.179 | 9 | 8 | 0.084 | 9 | 9 | 0.007 |
5Â min | 9 | 9 | 0.005 | 9 | 9 | 0.050 | 10 | 9 | 0.012 | |
10Â min | 10 | 9 | 0.023 | 10 | 10 | 0.192 | 10 | 10 | 0.010 | |
No. of diseases associated | 4 (0–10) | 4 (0–11) | 0.414 | 4 (0–14) | 4 (0–12) | 0.149 | 2 (0–8) | 2 (0–6) | 0.531 | |
No. of ventilated newborns (%) | 219 (83.27) | 720 (68.31) | 0.000 | 571 (51.72) | 177 (59.60) | 0.033 | 285 (27.83) | 74 (41.34) | 0.000 | |