Comparative analysis of sleep duration and stroke prevalence in China and the U.S. before and during COVID-19

Table 5 Weighted odds ratios (95% confidence intervals) of stroke and different durations in different models for both the CHARLS and NHANES databases

Variables	Model1		Model2		Model3		Model4
Variables	OR (95%CI)	P value	OR (95%CI)	P value	OR (95%CI)	P value	OR (95%CI)	P value
Sleeptime_2018
< 7 h	1(Ref)		1(Ref)		1(Ref)		1(Ref)
7–9 h	0.78 (0.67,0.92)	0.004	0.81 (0.69,0.96)	0.015	0.79 (0.65,0.97)	0.022	0.81 (0.67,0.99)	0.044
> 9 h	1.26 (1.01,1.58)	0.049	1.10 (0.87,1.39)	0.411	1.08 (0.82,1.43)	0.587	1.10 (0.83,1.47)	0.496
P-trend	< 0.001		0.027		0.024		0.120
Sleeptime_2020
< 7 h	1(Ref)		1(Ref)		1(Ref)		1(Ref)
7–9 h	0.70 (0.53,0.91)	0.007	0.72 (0.55,0.96)	0.024	0.74 (0.56,0.98)	0.037	0.75 (0.56,0.99)	0.042
> 9 h	1.32 (0.92,1.90)	0.126	1.16 (0.79,1.70)	0.437	1.14 (0.78,1.67)	0.503	1.17 (0.79,1.71)	0.435
P-trend	< 0.001		0.004		0.004		0.009
Sleeptime_2017-2020.03
< 7 h	1(Ref)		1(Ref)		1(Ref)		1(Ref)
7–9 h	0.79 (0.63,0.99)	0.045	0.74 (0.58,0.94)	0.013	0.75 (0.58,0.97)	0.026	0.77 (0.56,0.98)	0.040
> 9 h	1.63 (1.31,2.03)	< 0.001	1.28 (1.02,1.61)	0.033	1.13 (0.89,1.44)	0.32	1.06 (0.74,1.53)	0.736
P-trend	< 0.001		0.028		0.036		0.579
Sleeptime_2021.08–2023.08
< 7 h	1(Ref)		1(Ref)		1(Ref)		1(Ref)
7–9 h	0.75 (0.57,0.99)	0.039	0.72 (0.55,0.96)	0.024	0.78 (0.58,1.06)	0.11	0.77 (0.57,1.04)	0.091
> 9 h	2.04 (1.59,2.63)	< 0.001	1.66 (1.28,2.15)	< 0.001	1.57 (1.19,2.09)	0.002	1.60 (1.20,2.12)	0.001
P-trend	< 0.001		< 0.001		< 0.001		0.012

The bold values denote statistically significant results at the predefined threshold (P < 0.05)
Model 1: Crude
Model 2: Adjusted for gender, age, and race
Model 3: Adjusted for gender, age, race, education, marry, poverty
Model 4: Adjusted for gender, age, race, education, marry, poverty, Hypertension, Diabetes, Dyslipidemia, Drinking, Smoking

ISSN: 1749-8090