方法：数据来源于神木县卫生局2008—2009年相关统计资料，运用描述性统计方法进行分析。
Methods: Descriptive statistics was used to analyze the data from 2008 to 2009 provided by Shenmu Health Bureau.
方法：资料来源于神木县卫生局2007—2009年相关统计资料，运用描述性统计方法进行分析。
Methods: a descriptive analysis was conducted by using the information and statistical data obtained from the Health Bureau from 2007 to 2009 at Shenmu County.
方法应用描述性统计方法分析生育率、初婚初育年龄、婚育间隔、生育间隔和出生性别比及其变化趋势。
Methods The statistical description of fertility rate, age at first marriage, age at first birth, interval between marriage and first birth, birth interval.
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