摘要 目的 探究基于跨理论模型（TTM）的孕期体质量管理对初产妇的影响。 方法 选取初产妇112例，分为试验组和对照组，每组56例。对照组孕妇给予常规体质量管理措施，试验组孕妇给予基于TTM的孕期体质量管理。利用行为变化阶段评估问卷、行为变化阶段量表评估两组孕妇的体质量管理行为，记录两组孕妇不同阶段的体质量变化值、产程、不良分娩结局和新生儿不良结局。 结果 干预后试验组的体质量管理行为各阶段变化、不同阶段体质量管理行为评分、不同阶段体质量变化值和产程时间、不良分娩结局和新生儿不良结局与对照组比较，差异有显著性（P＜0.05）。 结论 基于TTM的孕期体质量管理干预能够有效控制初产妇的体质量增长，减少孕妇分娩的产程时间，降低不良分娩结局和新生儿不良结局的发生。 Abstract：Objective To investigate the effect of pregnancy weight management based on a trans-theoretical model (TTM) on primiparas. Methods A total of 112 primiparas were divided into experimental group and control group, with 56 primiparas in each group. The pregnant women in the control group were given conventional weight management, and those in the experimental group were given TTM-based pregnancy weight management. The behavioral change evaluation questionnaire and behavior change scale were used to assess weight management behavior. Weight change, stage of labor, adverse delivery outcome, and adverse neonatal outcomes were recorded for both groups. Results After intervention, there were significant differences between the two groups in the changes in weight management behavior, score of weight management behavior, and body weight during different stages, as well as duration of labor, adverse delivery outcomes, and adverse neonatal outcomes (P<0.05). Conclusion TTM-based pregnancy weight management can effectively control the increase in the weight of primiparas and reduce the duration of labor and the incidence rates of adverse delivery outcomes and adverse neonatal outcomes
