Wambach K A
School of Nursing, University of Kansas, Kansas City 66160-7503, USA.
Res Nurs Health. 1997 Feb;20(1):51-9. doi: 10.1002/(sici)1098-240x(199702)20:1<51::aid-nur6>3.0.co;2-t.
Causal modeling was used to test the hypotheses of the theory of planned behavior for the prediction of prenatal breastfeeding intentions and postpartum breastfeeding outcomes with 135 childbearing women. In support of the theory, prenatal breastfeeding attitudes and perceived behavioral control predicted breastfeeding intentions (R2 = 23); however, the subjective norm variable failed to meet statistical criteria for model entry. Breastfeeding intentions weakly predicted duration of breastfeeding up to 6 weeks postpartum (R2 = .04). No additional empirically suggested prenatal and postpartum variables increased the explanatory power of the model in predicting breastfeeding intentions and duration. Implications for practice and research are discussed.
采用因果模型，对135名育龄妇女的产前母乳喂养意愿及产后母乳喂养结果预测进行计划行为理论假设检验。为支持该理论，产前母乳喂养态度和感知行为控制可预测母乳喂养意愿（R2 = 23）；然而，主观规范变量未达到模型纳入的统计标准。母乳喂养意愿对产后6周内的母乳喂养持续时间预测作用较弱（R2 = 0.04）。没有其他经实证建议的产前和产后变量能增加模型在预测母乳喂养意愿和持续时间方面的解释力。文中讨论了对实践和研究方面的启示。
