Abstract

Introduction: Sleep disturbances and night time symptoms are associated with the level of control of ashtma symptoms and quality of life

Aims and objectives: Main aim: validate the Sleep Jenkins Questionnaire (SJQ) into Spanish. Secondary aim: assess quality of sleep in asthmatic patients using the SJQ and the Medical Outcome Study (MOS) sleep scale and analyse the metric properties of the SJQ

Method: A multicentric prospective study with an intervention group of asthmatic patients and a control group. A total of 90 cases and 90 controls were included. The questionnaires were administered during 3 successive visits at a 3 weeks and 3 months interval

Results: The test re-test of SJQ between V1 and V2 in the 90 cases showed temporary stability. Patients who had exacerbation of asthma between V2 and V3 had higher scores in SJQ (worse quality of sleep) at V3 than V2, which shows the sensivity to change of the test.  A good correlation between the two measurament scales was observed at V1. The SJQ score between cases and controls during V1 showed significant differences in quality of sleep in both grooups. No statistically significant differences were found in quality of sleep depending on the severity of asthma but statistically significant differences were observed according to the control of asthma. The overall quality of sleep of our patients was good

Conclusions: The SJQ showed temporary stability in the test-retest, sensitivity to change and validity criteria