Table 1.

Sociodemographic factors and well-being

			Well-being
		Total	Poor		Fair
		N	N	%	N	%	p-value*
Total		5,995	2,415	40.3	3,580	59.7
Gender	Male	3,304	1,341	40.6	1,963	59.4	0.595
	Female	2,691	1,074	39.9	1,617	60.1
Age	<29	901	328	36.4	573	63.6	<0.001
	30–39	1,833	790	43.1	1,043	56.9
	40–49	1,662	602	36.2	1,060	63.8
	50–59	1,018	426	41.8	592	58.2
	>60	581	269	46.3	312	53.7
Education	Middle school or lower	917	455	49.6	462	50.4	<0.001
	High school	2,578	1,057	41.0	1,521	59.0
	Junior college	755	325	43.0	430	57.0
	College or higher	1,745	578	33.1	1,167	66.9
Monthly income (KRW)	<1 million	1,326	572	43.1	754	56.9	<0.001
	1≤, <2 million	2,251	939	41.7	1,312	58.3
	2≤, <3 million	1,382	547	39.6	835	60.4
	≥3 million	1,036	357	34.5	679	65.5
Balancing income and expenses	Difficult	1,149	669	58.2	480	41.8	<0.001
	Somewhat difficult	2,122	986	46.5	1,136	53.5
	Somewhat easy	1,740	525	30.2	1,215	69.8
	Easy	984	235	23.9	749	76.1
Health status	Bad	255	171	67.1	84	32.9	<0.001
	Normal	1,396	831	59.5	565	40.5
	Good	3,572	1,253	35.1	2,319	64.9
	Very good	772	160	20.7	612	79.3
Smoking	Non smoker	3,420	1,328	38.8	2,092	61.2	0.025
	Current smoker	1,999	850	42.5	1,149	57.5
	Ex-smoker	576	237	41.1	339	58.9
Drinking	Non-drinker	1,715	688	40.1	1,027	59.9	<0.001
	Moderate drinker	2,574	976	37.9	1,598	62.1
	Excessive drinker	1,706	751	44.0	955	56.0

*p-value: Pearson’s chi-squared test.