Table 4.

Balance test results

Variables	U/M	Vigorous physical activity		Moderate physical activity		Mild physical activity
		%bias	P-value	%bias	P-value	%bias	P-value
Gender	U	4.2	0.070	−4.4	0.058	1.1	0.636
	M	1.8	0.509	1.2	0.659	0.2	0.942
Age	U	1.7	0.462	−3.0	0.201	1.7	0.471
	M	3.2	0.230	2.1	0.431	1.2	0.651
Marital status	U	2.9	0.201	−2.0	0.396	1.1	0.647
	M	2.4	0.372	1.9	0.479	2.4	0.387
Education background	U	−13.3	0.000	4.7	0.041	8.2	< 0.001
	M	1.2	0.650	1.4	0.606	1.0	0.723
Residential area	U	17.4	< 0.001	−10.6	< 0.001	−6.3	0.006
	M	0.5	0.830	−2.8	0.319	−3.2	0.248
Smoking	U	3.4	0.139	−5.2	0.025	2.0	0.387
	M	1.0	0.717	1.2	0.663	−0.5	0.869
Drinking	U	22.5	< 0.001	−4.5	0.055	−6.7	0.004
	M	−1.1	0.705	3.5	0.196	3.0	0.262
Sleeping duration per day	U	−2.9	0.221	0.6	0.809	4.8	0.035
	M	−2.7	0.305	−0.1	0.984	−0.5	0.853
Insurance	U	−1.0	0.650	6.8	0.005	−3.0	0.191
	M	−1.2	0.660	0.5	0.833	−0.3	0.905

U unmatched, M matched