Evaluation of the relationship between restless legs syndrome, mental status and sleep disorders among moroccan women during their third trimester of pregnancy

Restless legs syndrome (RLS) is a motor disorder encountered during pregnancy and leading to psychological and sleep impairments. The latter seems to be non-restorative and its occurrence alters the quality of life of pregnant woman. The objective of this study was to evaluate the prevalence of RLS and its relationship with both anxio-depressive symptoms and sleep disorders among a population of Moroccan pregnant women during their third trimester of pregnancy. A cross-sectional study was conducted in a population of pregnant women in their third trimester (n=178) admitted to two health facilities in the city of Marrakech: Youssef Ibn Tachafine and Oasis. The face-to-face questionnaire was used to collect data including, demographic and clinical characteristics, the four diagnostic criteria of RLS, the Pittsburgh Sleep Quality Index (PSQI) and the Hospital Anxiety and Depression Scale (HADS). Patients were divided into two groups RLS+ (women with restless legs syndrome) and RLS- (women without restless legs syndrome). The prevalence of RLS was 59.5%, this syndrome was more common in the ninth month (74.15%) compared with the seventh and eighth months. Sleep impairment including sleep efficiency was significantly higher in RLS+ more than RLS- (P-value 0.05). Anxiety but not depression is significantly increased in RLS+ compared to RLS- (48.11% versus 38.8%, P = 0.000). No significant differences between RLS+ and RLS- in terms of socio-demographic and other clinical characteristics. RLS is encountered during the prenatal period, with a higher prevalence in the last trimester. During this stage of pregnancy, women suffering from RLS were vulnerable to anxiety and sleep disorders. Prevention and early diagnosis of RLS syndrome could be a proactive healthcare management leading to ensure better health outcomes and better conditions of pregnancy which precedes childbirth.