“…Undertaking a systematic review of the literature, the authors identify research that utilises the WPAI measure. Drawing on data from three nocturia-related studies (Andersson et al, 2013;Biliotti et al, 2014;Kobelt et al, 2003), Miller et al (2016) find that nocturia increases overall work impairment from anywhere between 10 and 39 per cent, reporting a large range of work-impairment estimates varying, in part, based on which relevant covariates were included. When compared to the magnitude of work impairment of other conditions, nocturia has a similar impact on productivity as overactive bladder (11-41%), gastroesophageal reflux disease (6-42%), asthma/allergies (6-40%), chronic obstructive pulmonary disease (19-42%), sleep problems (12-37%), depression (15-43%) and gout (20-37%).…”