Table 1.
Patient characteristics and laboratory values of umbilical cord blood
| Data | Extremely premature | Moderately premature | Mature neonates | p value |
|---|---|---|---|---|
| (<30 weeks) | (30–35 weeks) | (>35 weeks) | (ANOVA) | |
| Number | n = 12 | n = 14 | n = 50 | |
| Clinical | ||||
| GA (weeks) | 28 4/7 ± 1 4/7 | 33 1/7 ± 1 1/7 | 37 3/7 ± 1 2/7 | na |
| Birth weight (g) | 1130 ± 260*# | 1930 ± 570* | 3040 ± 520 | <0.001 |
| Female/male | 4/8 | 6/8 | 23/27 | na |
| APGAR 5ʹ | 8 ± 1 | 9 ± 1 | 9 ± 1 | ns |
| 10ʹ | 8 ± 1 | 9 ± 1 | 9 ± 1 | ns |
| Laboratory | ||||
| Arterial pH | 7.31 ± 0.07 | 7.30 ± 0.04 | 7.28 ± 0.05 | ns |
| CrP (mg/dl) | <0.05 | <0.05 | <0.05 | na |
| WBC/nl | 9.3 ± 3.6* | 12.3 ± 3.9 | 14.5 ± 7.9 | <0.05 |
| PMN (%) | 25.4 ± 12.8* | 32.4 ± 9.5* | 45.5 ± 14.2 | <0.001 |
| Hct (%) | 0.45 ± 0.05 | 0.50 ± 0.04 | 0.48 ± 0.06 | ns |
Data are given as mean ± SEM if applicable. GA, gestational age; APGAR score; WBC, White blood cell count; Hct, haematocrit; CrP, C-reactive protein; na, not applicable; ns, not significant. The asterisk (*) indicates significant differences vs. mature neonates and the pound key (#) vs moderately premature infants as given by the P value (ANOVA).