While A E
Department of Nursing Studies, King's College, London.
Child Care Health Dev. 1990 Jul-Aug;16(4):219-26. doi: 10.1111/j.1365-2214.1990.tb00656.x.
A survey of health visitor records has indicated that approximately one-third of pregnancies resulting in live births are unplanned. The data further revealed an association between planning of pregnancies and socio-demographic variables and use of preventive health care for infants.
一项对健康访视员记录的调查表明,在活产的妊娠中,约三分之一是意外怀孕。数据进一步揭示了妊娠计划与社会人口统计学变量以及婴儿预防性医疗保健使用之间的关联。