Louise Herrington School of Nursing, Baylor University, Dallas, TX 75246, USA.
J Midwifery Womens Health. 2010 Jan-Feb;55(1):60-4. doi: 10.1016/j.jmwh.2009.03.014.
A pilot study was conducted to determine if a nutritional intervention aimed at portion control leads to significant weight loss in a community of low-income Mexican American women. Nineteen low-income Mexican American women were randomized to a standard care group or an intervention group in portion control. The trial was 20 weeks in length, and the intervention included four 2-hour classes. Both interventions were administered by a certified nurse-midwife (CNM) and a promotora de salud (i.e., lay health advisor). Women in the intervention group lost more weight than women in the standard care group, though this difference was not statistically significant. The mean weight loss in the intervention group was 6.57 pounds (2.9 kg) compared to a mean weight loss of 2.8 pounds (1.3 kg) in the standard care group (P = .47). Mean weight loss, regardless of group, was significantly greater when participants reported self-weighing (P = .02). This pilot study in portion control for low-income Mexican American women merits further study.
一项初步研究旨在确定针对部分控制的营养干预是否会导致低收入墨西哥裔美国妇女社区的体重显著减轻。19 名低收入的墨西哥裔美国妇女被随机分配到标准护理组或部分控制干预组。试验持续 20 周，干预措施包括四节 2 小时的课程。两种干预措施均由注册护士助产士 (CNM) 和促进者健康 (即，初级卫生顾问) 实施。干预组的女性体重减轻量多于标准护理组，但这一差异无统计学意义。干预组的平均体重减轻量为 6.57 磅（2.9 公斤），而标准护理组的平均体重减轻量为 2.8 磅（1.3 公斤）（P =.47）。无论组如何，当参与者报告自我称重时，体重减轻的平均值显着更大（P =.02）。这项针对低收入墨西哥裔美国妇女的部分控制的初步研究值得进一步研究。
