Table 5

Regression coefficients (SEs) of sleep duration associated with SBP and DBP by gender and age groups

Variables	SBP				DBP
Variables	30–44 years	45–59 years	≥60 years	Total	30–44 years	45–59 years	≥60 years	Total
Overall*
Participants (n)	18 787	24 013	12 887	55 687	18 787	24 013	12 887	55 687
Regression coefficients (SEs)	0.219 (0.073)	0.424 (0.087)	0.646 (0.131)	0.408 (0.055)	0.116 (0.050)	0.153 (0.048)	0.166 (0.069)	0.131 (0.031)
P value	<0.001	<0.001	<0.001	<0.001	<0.05	<0.01	<0.05	<0.001
Male†
Participants (n)	6364	8993	5958	21 315	6364	8993	5958	21 315
Regression coefficients (SEs)	0.213 (0.123)	0.566 (0.134)	0.554 (0.195)	0.474 (0.088)	0.072 (0.09)	0.320 (0.079)	0.194 (0.103)	0.203 (0.051)
P value	>0.05	<0.001	<0.001	<0.001	>0.05	<0.001	>0.05	<0.001
Female†
Participants (n)	12 423	15 020	6929	34 372	12 423	15 020	6929	34 372
Regression coefficients (SEs)	0.227 (0.091)	0.378 (0.113)	0.716 (0.178)	0.417 (0.070)	0.139 (0.061)	0.070 (0.061)	0.150 (0.092)	0.102 (0.039)
P value	<0.05	<0.001	<0.001	<0.001	<0.05	>0.05	>0.05	<0.01

*Age, sex, education level, occupation, marital status, income, tea consumption, smoking status, alcohol intake, metabolic equivalent (MET), sedentary leisure time, fresh fruit consumption, insomnia, sleep snoring, body mass index (BMI), waist circumference (WC), diabetes mellitus (DM), stroke and coronary heart disease (CHD) were included in models for adjustment.
†Age, education level, occupation, marital status, income, tea consumption, smoking status, alcohol intake, MET, sedentary leisure time, fresh fruit consumption, insomnia, sleep snoring, BMI, WC, DM, stroke and CHD were included in models for adjustment.
SBP, systolic blood pressure; DBP, diastolic blood pressure.