Table 4. Results of newborn hematologic indices used clinically for neonatal sepsis workup.
| Variable | MATERNAL GROUPS (N=185) | P value | ||
|---|---|---|---|---|
| PPROM (+) AF infection n=61 |
PPROM (−) AF infection n=62 |
PPROM No Amniocentesis n=62 |
||
| Hematologic indices | ||||
| Hematocrit, % ‡ | 45 [41–48] | 48 [44–53] | 47 [41–51] | 0.007 |
| Hemoglobin, g/dL ‡ | 14 [13–15] | 16 [14–17] | 15 [14–17] | 0.002 |
| WBC count, cells x 1,000/mm3 ‡ | 13 [8–18] | 10 [8–14] | 12 [9–16] | 0.047 |
| Platelet count, cells x 1,000/mm3 ‡ | 260 [219–308] | 286 [214–331] | 252 [189–306] | 0.172 |
| Segmented neutrophils, % ‡ | 36 [22–43] | 35 [26–42] | 40 [22–49] | 0.292 |
| Lymphocytes, % ‡ | 38 [25–54] | 45 [33–59] | 38 [31–55] | 0.094 |
| Nucleated RBC, cells per 100 WBC ‡ | 17 [9–43] | 8 [4–17] | 11 [5–25] | <0.001 |
| ANC, cells/mm3 ‡ | 3913 [2005–7762] | 3157 [2378–5863] | 5236 [1995–8112] | 0.286 |
| ABC, cells/mm3 ‡ | 682 [252–2388] | 132 [0–592] | 270 [0–976] | <0.001 |
| I:T ratio, % ‡ | 8 [2–13] | 1 [0–5] | 2 [0–8] | <0.001 |
| Presumed EONS § | 22 (37) | 8 (13) | 10 (17) | 0.004 |
| Culture confirmed EONS § | 2 (3) | 1 (2) | 1 (2) | 0.779 |
Data presented as median [interquartile range] and analyzed by Kruskal-Wallis ANOVA.
Data presented as n (%) and analyzed by Chi square tests.
Abbreviations: PPROM, preterm premature rupture of membranes; IAI, intra-amniotic inflammation; WBC, white blood cell; RBC, red blood cells; ANC= absolute neutrophil count; ABC= absolute band count; I:T, immature/total neutrophil count; EONS: early-onset neonatal sepsis.