Table 4.

Distribution of subjects who can chew all foods well by study variables (Chi-squared test).

Variable	Male(N = 2347)			Female (N = 3036)
	N*	%**	P	N*	%**	P
Regular life rhythm
Yes	2174	57.7%	<0.001	2815	55.5%	<0.001
No	173	42.8%		221	37.1%
Regular sleep
Yes	1882	59.8%	<0.001	2228	57.8%	<0.001
No	465	43.7%		808	44.2%
Regular physical activity
Yes	1244	62.2%	<0.001	1400	62.0%	<0.001
No	1103	50.2%		1636	47.5%
Current smoking
No	2068	57.6%	0.007	2958	54.6%	0.002
Yes	279	49.1%		78	37.2%
Drinking alcohol
No	1316	56.6%	0.975	2608	54.7%	0.177
Yes	1031	56.5%		428	51.2%
Feeling stress
No	441	67.1%	<0.001	490	66.1%	<0.001
Yes	1906	54.1%		2546	51.9%
Observation of teeth and/or gum
Yes	989	59.0%	0.040	1461	57.8%	<0.001
No	1358	54.8%		1575	50.8%
Using interdental tools
Yes	864	64.2%	<0.001	1284	60.6%	<0.001
No	1483	52.1%		1752	49.5%
Enough time for tooth brushing
Yes	1029	61.5%	<0.001	1334	60.3%	<0.001
No	1318	52.7%		1702	49.4%
Being choked
No	1760	60.3%	<0.001	2280	58.2%	<0.001
Yes	587	45.5%		756	42.2%
Feeling mouth dry
No	1522	60.3%	<0.001	1776	60.5%	<0.001
Yes	825	49.7%		1260	45.2%
Deviated food habit
No	1888	59.5%	<0.001	2438	57.3%	<0.001
Yes	459	44.7%		598	41.5%
Chewing before swallowing
More than 30 times	456	61.2%	0.027	584	58.2%	0.029
Fewer than 30 times	1891	55.5%		2452	53.2%

 *N: total number of subjects corresponding to each answer.

**%: the percentage of subjects who can chew all foods well corresponding to each answer.