Strobino D M, Chase G A, Kim Y J, Crawley B E, Salim J H, Baruffi G
Am J Public Health. 1986 Mar;76(3):274-8. doi: 10.2105/ajph.76.3.274.
A quasi-experimental, nonequivalent control group design was used to evaluate the Improved Child Health Projects in northwest Mississippi (ICHP1 and ICHP2). Control counties were selected for each project that on average were similar to ICHP counties on racial composition, median family income in 1970 and 1980, and number of births in 1978-79. The study population comprised all resident births in the ICHP and control counties during a pre-ICHP period (1975-78) and the ICHP period (1979-81). The percentage of women with adequate prenatal care rose between the two periods for all counties; the rise was greater for the study than for the control counties for ICHP1; the reverse was found for ICHP2. For both projects, the low birthweight rate remained constant in the pre-ICHP and ICHP periods for the study and control counties. Adjustment for changes in the childbearing characteristics between the two periods did not alter these results. Community involvement in its development and coordination may explain ICHP1's impressive rise in the use of prenatal care.
采用准实验性、非对等对照组设计来评估密西西比州西北部的儿童健康改善项目（ICHP1和ICHP2）。为每个项目选择了对照县，这些对照县在种族构成、1970年和1980年的家庭收入中位数以及1978 - 1979年的出生人数方面平均与ICHP县相似。研究人群包括ICHP县和对照县在ICHP实施前时期（1975 - 1978年）和ICHP时期（1979 - 1981年）的所有常住出生人口。所有县在这两个时期之间接受充分产前护理的妇女比例都有所上升；ICHP1中，研究县的上升幅度大于对照县；ICHP2则相反。对于这两个项目，研究县和对照县的低体重儿出生率在ICHP实施前和ICHP时期均保持不变。对两个时期之间生育特征变化进行调整后，这些结果并未改变。社区对其发展和协调的参与可能解释了ICHP1在产前护理使用方面令人印象深刻的上升。
