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172例新生儿,日龄为2小时～28天,其中正常者126例,贫血者46例。126例正常新生儿血象:Hb(17.5±1.6g/dl)、RBC(554.3±8.9万/mm~3)、HCt(58.2±6.7%)、MCV(105.2土17.9μm)、MCH(31.7±5.2μμg)、MCHC(30、4±3.9%)、WBC(13333.4±3084.7/mm~3、N(50.7±10.7%)、L(49.1±10.7%)。46例贫血儿,患病率26.7%,小于10天组9人(9.2%),10天～28天组37人(50%),不同的日龄间贫血患病率有显著差异(p<0.005),贫血程度随出生时体重而改变,体重越低贫血程度越重,贫血的原因有脐带松解、前置胎盘、颅内出血、低出生体重、早产、双胎、各种感染及孕母有中度以上的贫血等。
172 newborns, the age of 2 hours to 28 days, of which 126 cases of normal, anemia in 46 cases. 126 normal neonates had Hb (17.5 ± 1.6 g / dl), RBC (554.3 ± 89 000 / mm 3), HCt (58.2 ± 6.7%), MCV (105.2 ± 17.9 μm), MCH (30.4 ± 3.9%), WBC (13333.4 ± 3084.7 / mm 3, N (50.7 ± 10.7%) and L (49.1 ± 10.7% 9 (9.2%) were less than 10 days, 37 (50%) were 10 days to 28 days, the prevalence of anemia was significantly different between different days (p <0.005), the degree of anemia was changed with the weight at birth The lower the body weight, the heavier the degree of anemia. The causes of anemia include umbilical cord loosening, placenta previa, intracranial hemorrhage, low birth weight, premature birth, twins, various infections and pregnant women with moderate to severe anemia.