手机短信干预对6月龄婴儿生长发育和贫血的改善作用

Effects of text message intervention on infant growth and anemia at 6 month old

目的探讨通过手机短信传播婴儿喂养知识对改善婴儿生长发育和贫血的影响。方法在内蒙古包头市土默特右旗选择4个社区卫生服务中心,其中一个社区为干预组,另外3个相邻社区为对照组。从在社区参加围产期保健的孕妇中招募自愿参加本研究的孕妇。在干预组,社区医护人员从孕末期至婴儿9月龄通过手机短信将婴儿喂养知识信息发送给干预组孕妇或乳母。在对照组,受试对象不给予干预。6月龄时评估干预组和对照组婴儿的生长发育状况及贫血的患病率。按照WHO 2006年公布的0~5岁儿童生长发育标准作为婴儿生长发育的评价标准,采用Anthro v3.2.2软件计算Z评分;婴儿血红蛋白浓度低于110 g/L定义为贫血,使用Hemocue 301型血红蛋白仪双样平行测定血红蛋白浓度。结果基线采集了214名孕晚期孕妇数据,婴儿6月龄时随访到192对母婴,失访率10.3%。婴儿6月龄时,干预组婴儿的年龄别身长Z评分（LAZ）、年龄别头围Z评分（HCZ）和血红蛋白水平均高于对照组（P〈0.01）。生长迟缓率（P〈0.01）、超重肥胖率（P=0.02）和贫血率（P〈0.01）均低于对照组。结论通过手机短信作为喂养知识的传播手段可改善婴儿生长发育和贫血状况。

Objective To investigate the effects of delivering infant feeding knowledge using text messages from cell phones on improving infant growth and anemia.Methods A community-based intervention study was conducted in four community health centers in Tumoteyou County,Baotou,Inner Mongolia,one of which was the intervention group and the other three locating nearby were assigned into the control group. Pregnant women were recruited from peri-natal care center. In the intervention group,infant feeding knowledge was sent by the staff of health care center using text messages to the subjects.Meanwhile,no intervention was given in the control group. The growth status and anemia prevalence were assessed at 6 month in both groups. The WHO growth standard for children under 5 years was used to assess the growth status,using the Anthro softwarev3. 2. 2 to calculate Z scores. Anemia was defined as the concentration of hemoglobin less than 110 g/L. Hemoglobin was measured in duplicate by Hemocue 301 instrument.Results Totally 214 pregnant women were recruited at the baseline. At the 6 months of postpartum,192 mothers and infants were investigated. The percentage of lost follow-up was 10. 3%. The LAZ,HCZ and hemoglobin concentration of infants were significantly greater in the intervention group than in the control group at 6 month old（ P〈0. 01）. The prevalence of stunting（ P〈0. 01）,overweight and obesity（ P = 0. 02）,and anemia（ P〈0. 01） were significantly lower in the intervention group. Conclusions Using text messages from cell phones to deliver infant feeding knowledge may improve the growth and anemia status of infants aged 6 month.