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Retrospective Cohort Study
©The Author(s) 2026.
World J Psychiatry. Feb 19, 2026; 16(2): 112235
Published online Feb 19, 2026. doi: 10.5498/wjp.v16.i2.112235
Table 1 Characteristics of participants, n (%)/mean ± SD
Variables
Value (n = 16476)
Male7929 (48.1)
Age < 60 years9210 (55.9)
Rural residence12962 (78.7)
Education level
    Primary school or below10366 (62.9)
    Middle school or above6110 (37.1)
Married14363 (87.2)
Smoking6989 (42.4)
Drinking4539 (37.5)
Sleep duration, hours6.227 ± 1.912
Nap duration, minutes40.273 ± 48.302


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