Table 3.

Results of the logistic regression analysis, including questionnaire responses.

Variables included in the model a	Correlation coefficient	95% CI	P value	Assigned score b
Commutes neither by walking nor by bicycle	1.25	(0.66 to 1.84)	<.001	13
Frequency of walking at work
Carrying objects	(Ref)			0
Office work, walk 3 or 4 times	0.43	(−0.47 to 1.34)	.347	4
Office work, walk twice	0.47	(−0.44 to 1.37)	.310	5
Office work, walk once or never	0.87	(0.01 to 1.73)	.047	9
Duration of leisure-time physical activity (min/wk)
≥300	(Ref)			0
150–300	1.43	(0.44 to 2.41)	.005	14
90–150	1.20	(0.18 to 2.23)	.022	14
60–90	1.76	(0.77 to 2.76)	.001	18
<60	1.82	(0.83 to 2.82)	<.001	18
Not engaged in leisure-time physical activity	2.78	(1.69 to 3.87)	<.001	28
Frequency of light breathlessness during leisure-time physical activity
Often or very often	(Ref)			0
Sometimes	0.34	(−0.23 to 0.92)	.242	3
Rarely	0.60	(−0.10 to 1.35)	.009	6
Not engaged in leisure-time physical activity	Omitted			—

^aDependent variable: moderate-to-vigorous physical activity for less than 150 min/wk.

^bThe assigned score was the regression coefficient of each variable multiplied by 10.