Norton E C, Zarkin G A, Calingaert B, Bradley C J
Department of Health Policy and Administration, School of Public Health, University of North Carolina at Chapel Hill 27599, USA.
Inquiry. 1996 Fall;33(3):247-57.
This study addresses the effect of maternal substance abuse on the cost of neonatal care in a sample of all singleton live births in Maryland in 1991. Most other cost studies have analyzed data from only one hospital; we analyzed data from 54 hospitals and therefore can control for individual hospital effects and correlation of observations within hospitals. We find that maternal drug abuse has a significant positive effect on total hospital charges, length of stay, and average daily charges, with the increase in length of stay being proportionally greater than the increase in average daily charges. Maternal alcohol abuse also has a positive effect on hospital charges and length of stay, but the effects are not statistically significant. About half the effect of drug abuse on total charges works indirectly through premature birth and other comorbidities.
本研究探讨了1991年马里兰州所有单胎活产样本中，母亲药物滥用对新生儿护理成本的影响。大多数其他成本研究仅分析了一家医院的数据；而我们分析了54家医院的数据，因此能够控制各医院的个体效应以及医院内部观察值的相关性。我们发现，母亲药物滥用对医院总费用、住院时长和日均费用有显著的正向影响，住院时长的增加幅度在比例上大于日均费用的增加幅度。母亲酒精滥用对医院费用和住院时长也有正向影响，但这些影响在统计学上并不显著。药物滥用对总费用的影响约有一半是通过早产和其他合并症间接产生的。
