Incidence density of sleep disorders among adults in Yinzhou District
Objective To investigate the incidence density of adult sleep disorders (SD) in Yinzhou District,Ningbo City,Zhejiang Province from 2017 to 2023,so as to provide insights into formulating the control measures of SD.Methods The electronic health records of permanent residents aged 18 years and over in Yinzhou District from 2017 to 2023 were collected through the Yinzhou Regional Health Information Platform.New cases of SD were diagnosed for the first time a year after establishing health records.The incidence density was estimated using Poisson distribution.The temporal,population and regional distribution characteristics of new cases of SD were analyzed using a descriptively epidemiological method.Results From 2017 to 2023,there were 1255129 permanent residents aged 18 years and over in Yinzhou District,with a total observed person-time of 6292884 person-years and a median of 5.67 (interquar-tile range,3.74) person-years.There were 165490 new cases of SD,including 67095 males (40.54%) and 98385 females (59.46%).The incidence density of SD in Yinzhou District from 2017 to 2023 was 26.30/1000 person-years,with no significant trend observed (P>0.05).The incidence density of SD was higher in females than in males (29.63/1000 person-years vs.22.57/1000 person-years,P<0.05).The highest incidence density of SD was observed in individuals aged 70 to<80 years (63.30/1000 person-years),and the lowest was in individuals aged 18 to<30 years (7.24/1000 person-years).The incidence density of SD in individuals aged 30 years and over was higher than that in individuals aged 18 to<30 years (all P<0.05).The incidence density of SD was 32.03/1000 person-years in individu-als with junior high school education or below,which was higher than individuals with senior high school/technical sec-ondary school education (25.93/1000 person-years) and college degree and above (18.87/1000 person-years,all P<0.05).Dongliu Street,Dongjiao Street,and Baihe Street had relatively higher incidence densities of SD,at 45.11/1000 person-years,42.87/1000 person-years and 40.16/1000 person-years,respectively.Conclusions From 2017 to 2023,there was no significant trend in the incidence density of SD in Yinzhou District.Higher incidence density were ob-served in females,the elderly,and individuals living in central urban areas.
sleep disordersepidemiological characteristicsincidence density