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本文分析12625例围产儿中664例低出生体重儿（LowBirthweightInfant，LBWI）的出生体重及产妇情况。结果：①LBWI664例，发生率为5．3％，其中足月LBWI345例，发生率为2．7％。14年间发生率的年递降率为4．7％；②围产儿死亡率为13．0‰。围产儿死亡率有随体重减轻而上升之势。低体重围产地组死亡率（135．5‰）为≥2500g组（6．2‰）的21．9倍；③孕用越小LBWI发生率越高；④26～27岁为最佳生育年龄，其LBWI发生率最低；⑤LBWI分布城乡间有明显差异（P＜0．001），女性高于男性（P＝0．011）；第1胎第1产LBWI发生率不论男、女都比多胎低；⑥不同胎位LBWI发生率有显著差异（P＝0．00572），枕左位LBWI发生率较低；⑦对LBWI发生的主要影响因素进行了logistic回归分析。
This article analyzes the birth weight and maternal condition of 664 low birth weight infants (LBWI) from 12,625 perinatal children. Results: ①LBWI 664 cases, the incidence was 5.3%, of which full-term LBWI 345 cases, the incidence was 2.7%. The annual decline rate of incidence in 14 years was 4.7%. The perinatal mortality rate was 13.0%. Perinatal mortality rates rise with weight loss. (135.5 ‰) in low-weight perinatal group was 21.9 times higher than that in ≧ 2500g group (6.2 ‰); ③The lower the pregnancy rate was, the higher the incidence of LBWI was; ④The optimal age of birth was 26-27 years old, The incidence of LBWI was the lowest; ⑤LBWI distribution in urban and rural areas were significantly different (P <0.001), women were higher than men (P = 0.011); (P = 0.00572). The incidence of LBWI on the left side of the occipital lobe was lower. (7) The main influential factors of LBWI were analyzed by logistic regression.