Table 1.

Characteristics of participants in Hebei Province of China, stratified by smoking status, 2017.

	Male						Female
Characteristics	Total		Never-smoker		Ever-smoker		Total		Never-smoker		Ever-smoker
	(n = 2,594)		(n = 846)		(n = 1,748)		(n = 3,958)		(n = 3,810)		(n = 148)
	n	%	n	%	n	%	n	%	n	%	n	%
Age group
20–29	318	12.26	112	13.24	206	11.78	494	12.48	489	12.83	5	3.38
30–39	433	16.69	164	19.39	269	15.39	716	18.09	701	18.40	15	10.14
40–49	526	20.28	207	24.47	319	18.25	956	24.15	931	24.44	25	16.89
50–59	698	26.91	203	24.00	495	28.32	990	25.01	950	24.93	40	27.03
60–80	619	23.86	160	18.91	459	26.26	802	20.26	739	19.40	63	42.57
p*	<0.001						<0.001
p for trend	<0.001						<0.001
Resident area&
Urban	1,090	42.02	416	49.17	674	38.56	1,879	47.47	1,850	48.56	29	19.59
Rural	1,503	57.94	429	50.71	1,074	61.44	2,072	52.35	1,954	51.29	118	79.73
p*	<0.001						<0.001
Education attainment&
Primary school or lower	564	21.74	114	13.48	450	25.74	1,433	36.21	1,327	34.83	106	71.62
High school	1,488	57.36	464	54.85	1,024	58.58	1,714	43.30	1,678	44.04	36	24.32
College or higher	541	20.86	267	31.56	274	15.68	807	20.39	804	21.10	3	2.03
p*	<0.001						<0.001
p for trend	<0.001						<0.001
Occupation&
Farmer	395	15.23	99	11.70	296	16.93	666	16.83	640	16.80	26	17.57
Factory worker	161	6.21	41	4.85	120	6.86	185	4.67	179	4.70	6	4.05
Technician	400	15.42	176	20.80	224	12.81	747	18.87	746	19.58	1	0.68
Officer	133	5.13	65	7.68	68	3.89	92	2.32	91	2.39	1	0.68
Unemployed	157	6.05	41	4.85	116	6.64	1,076	27.19	993	26.06	83	56.08
Others	1,348	51.97	424	50.12	924	52.86	1,190	30.07	1,159	30.42	31	20.95
p*	<0.001						<0.001
Personal income (RMB/year) &
<10,000	591	22.78	148	17.49	443	25.34	1,059	26.76	991	26.01	68	45.95
10,000–29,999	753	29.03	223	26.36	530	30.32	1,627	41.11	1,575	41.34	52	35.14
30,000–49,999	754	29.07	294	34.75	460	26.32	969	24.48	952	24.99	17	11.49
≥50,000	491	18.93	180	21.28	311	17.79	275	6.95	267	7.01	8	5.41
p*	<0.001						<0.001
p for trend	<0.001						<0.001
Alcohol drinking&
Never drinking	305	11.76	125	14.78	180	10.30	2,819	71.22	2,735	71.78	84	56.76
Quit drinking	254	9.79	67	7.92	187	10.70	159	4.02	147	3.86	12	8.11
Current drinking	2,035	78.45	654	77.30	1,381	79.00	978	24.71	926	24.30	52	35.14
p*	<0.001						<0.001
Alcohol consumption (g/day)&
Never drinking	305	11.76	125	14.78	180	10.30	2,819	71.22	2,735	71.78	84	56.76
<40	1,576	60.76	560	66.19	1,016	58.12	1,066	26.93	1,018	26.72	48	32.43
41–60	273	10.52	58	6.86	215	12.30	40	1.01	32	0.84	8	5.41
>60	440	16.96	103	12.17	337	19.28	29	0.73	21	0.55	8	5.41
p*	<0.001						<0.001
p for trend	<0.001						<0.001

^*Comparisons between never-smoker and ever-smoker in the same sex;

^&The sum of the proportion was not equal to 100% because of missing values. 1 RMB ≈ 0.14 USD.