TABLE 3.

Association between rapid gait speed and sleep problems estimated by multivariable linear regression.

Variables		Full modela	Model stratified by sexb
		Total (95% CI)	Male (95% CI)	Female (95% CI)
Age		0.029 [0.025, 0.034]	0.387 [0.266, 0.508]	0.453 [0.340, 0.5661]
Marital	Yes vs. No	0.417 [0.334, 0.500]	−0.337 [−0.522, −0.153]	−0.353 [−0.488, −0.218]
Education years		−0.019 [−0.028, −0.009]	−0.018 [−0.033, −0.003]	−0.020 [−0.032, −0.007]
Sex	Male vs. Female	0.028 [−0.071, 0.127]	–	–
Smoking	Yes vs. No	−0.013 [−0.066, 0.039]	−0.014 [−0.076, 0.048]	−0.002 [−0.134, 0.130]
Alcohol	Yes vs. No	0.151 [−0.239, −0.063]	0.142 [−0.031, 0.251]	0.178 [−0.022, 0.335]
Physical activity level	High vs. Low	−0.165 [−0.239, −0.091]	−0.179 [−0.290, −0.061]	−0.149 [−0.245, −0.052]
Setting	Urban vs. Rural	0.080 [0.002, 0.157]	0.076 [−0.045, 0.197]	0.077 [−0.021, 0.175]
Disease		0.135 [0.096, 0.174]	0.157 [0.097, 0.218]	0.113 [0.063, 0.163]
BMI		0.007 [−0.001, 0.014]	0.009 [−0.003, 0.020]	0.005 [−0.004, 0.013]
Poor sleep quality	Yes vs. No	−0.029 [−0.282, 0.224]	0.088 [−0.366, 0.541]	−0.090 [−0.375, 0.196]
Sleep duration	7–8 h	ref	ref	ref
	<7 h	0.042 [−0.043, 0.128]	0.046 [−0.084, 0.173]	0.039 [−0.071, 0.150]
	>8 h	0.038 [−0.054, 0.131]	0.024 [−0.112, 0.158]	0.059 [−0.064, 0.182]

*p < 0.05; **p < 0.01; ***p < 0.001.

^aThe adjusted model included age, sex, education years, setting, alcohol consumption, smoking, number of diseases, physical activity, BMI, and sleep duration.

^bThe adjusted model included age, education years, setting, alcohol consumption, smoking, number of diseases, physical activity, BMI, and sleep duration.