	Items		Good continuation		Improve		No improve
			n	%	n	%	n	%	χ²	p
			ARV		ARV		ARV		χ²	p
1	Attitude of staying away from smokers
	Gender	Male	1046	35.3%	670	22.6%	1247	42.1%	19.925	<0.001
			−3.1		−1.6		4.4
		Female	1178	39.1%	735	24.4%	1098	36.5%
			3.1		1.6		−4.4
	Classification	Elementary school	1900	37.2%	1187	23.2%	2019	39.5%	1.847	0.397
			−0.1		−1.2		1.1
		Junior high school	324	37.3%	218	25.1%	326	37.6%
			0.1		1.2		−1.1
	Conversation	Yes	1344	38.9%	811	23.5%	1297	37.6%	12.281	0.002
	about cigarettes		3.2		−0.1		−3.1
	with the family	No	880	34.9%	594	23.6%	1048	41.6%
			−3.2		0.1		3.1
	Intention to speak	Yes	1574	42.5%	962	26.0%	1166	31.5%	247.565	<0.001
	about SPEP		10.8		5.7		−15.7
	with family	No	650	28.6%	443	19.5%	1179	51.9%
			−10.8		−5.7		15.7
	Smoker in family	No	1141	42.4%	622	23.1%	925	34.4%	65.244	<0.001
			7.5		−0.6		−6.9
		Yes	1083	33.0%	783	23.8%	1420	43.2%
			−7.5		0.6		6.9