van de Pol G, de Leeuw J R J, van Brummen H J, Bruinse H W, Heintz A P M, van der Vaart C H
Department of Perinatology and Gynecology, University Medical Center Utrecht, The Netherlands.
Acta Obstet Gynecol Scand. 2006;85(7):786-91. doi: 10.1080/00016340500456373.
During pregnancy, every second woman will experience some degree of back or pelvic pain. While several validated instruments to assess back pain exist for the general population, these are not suitable for application in a pregnant population and have not been validated for this purpose. A pregnant population not only differs from the general population regarding the type of back pain--frequently a pelvic girdle component is added--but pregnant women also have different mobility patterns and expectations. We therefore present in this study a self-report mobility scale specifically designed for a pregnant population: the Pregnancy Mobility Index.
Longitudinal cohort study including 672 nulliparous women with a singleton low-risk pregnancy. The Pregnancy Mobility Index consists of items concerning day-to-day activities selected through literature research and clinical experience. Participating women completed the questionnaire at 12 and 36 weeks' gestation and one year after delivery. Reliability, construct and criterion validity were tested.
The internal consistency (Cronbach's alpha) was 0.8 or higher. The Pregnancy Mobility Index scales correlated best with the physical and pain scale of the RAND-36, indicating a good construct validity. The assumptions that the Pregnancy Mobility Index scores increase during pregnancy and decrease after delivery and that women with back or pelvic problems scored higher on the Pregnancy Mobility Index domains than women without back or pelvic pain were confirmed, indicating a good criterion validation.
The Pregnancy Mobility Index has been shown to be a reliable and valid questionnaire well suited for use during and after pregnancy.
在孕期，每两位女性中就有一位会经历某种程度的背部或骨盆疼痛。虽然有几种经过验证的用于评估一般人群背痛的工具，但这些工具不适用于孕妇群体，且尚未针对此目的进行验证。孕妇群体不仅在背痛类型方面与一般人群不同——通常还会增加骨盆带疼痛成分——而且孕妇的活动模式和期望也有所不同。因此，我们在本研究中提出了一种专门为孕妇群体设计的自我报告活动量表：妊娠活动指数。
纵向队列研究，纳入672名单胎低风险妊娠的未生育女性。妊娠活动指数由通过文献研究和临床经验筛选出的与日常活动相关的项目组成。参与研究的女性在妊娠12周和36周以及产后一年完成问卷。对其信度、结构效度和效标效度进行了测试。
内部一致性（Cronbach's alpha）为0.8或更高。妊娠活动指数量表与兰德36项健康调查的身体和疼痛量表相关性最佳，表明具有良好的结构效度。妊娠活动指数得分在孕期增加、产后降低，以及有背部或骨盆问题的女性在妊娠活动指数各领域的得分高于无背部或骨盆疼痛女性的假设得到证实，表明具有良好的效标效度。
妊娠活动指数已被证明是一份可靠且有效的问卷，非常适合在孕期及产后使用。
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