O'Brien B, Zhou Q
Birth. 1995 Jun;22(2):93-100. doi: 10.1111/j.1523-536x.1995.tb00566.x.
Seventy to 90 percent of all pregnant women experience nausea, and 50 percent have at least one episode of vomiting or retching. A continuous measure was used to quantify symptoms of nausea with or without vomiting or retching during pregnancy in 126 women. Relationships between symptoms and selected variables were evaluated. Nausea with or without vomiting or retching was associated with maternal age, occupation, parity, cigarette smoking, infant gender, and the personality trait of independence. Significant associations were entered into multiple regression equations. Fourteen percent of the variation in symptoms overall, 25.1 percent of the variation in nausea symptoms, and 16.6 percent of the variation in vomiting or retching symptoms were explained by a combination of these selected independent variables. Although this study found associations, independent variables contributed little to predicting or explaining the presence and severity of nausea and vomiting during pregnancy. More sensitive measures and evaluation are required to understand and treat this perplexing phenomenon.
70%至90%的孕妇会出现恶心症状，50%的孕妇至少有一次呕吐或干呕发作。采用连续测量法对126名孕妇孕期有或无呕吐或干呕时的恶心症状进行量化。评估了症状与选定变量之间的关系。有或无呕吐或干呕的恶心症状与产妇年龄、职业、产次、吸烟、婴儿性别以及独立的人格特质有关。显著关联被纳入多元回归方程。这些选定的自变量组合解释了总体症状变异的14%、恶心症状变异的25.1%以及呕吐或干呕症状变异的16.6%。尽管这项研究发现了关联，但自变量对预测或解释孕期恶心和呕吐的存在及严重程度贡献不大。需要更敏感的测量方法和评估来理解和治疗这一令人困惑的现象。
