Table 2

Experience of use of HTPs in the restaurants where smoking was not permitted in the last year

		Ever use					Frequent use
		n/N (%)	Crude OR (95% CI)	P value	Adjusted OR (95% CI)	P value	n/N (%)	Crude OR (95% CI)	P value	Adjusted OR (95% CI)	P value
Sex	Male	94/841 −11.2	0.76 (0.50 to 1.16)	0.207	0.75 (0.47 to 1.19)	0.219	38/841 −4.5	0.76 (0.41 to 1.43)	0.402	0.76 (0.37 to 1.55)	0.449
Sex	Female	34/240 −14.2	Reference		Reference		14/240 −5.8	Reference		Reference
Age	16−29	22/134 −16.4	1.45 (0.78 to 2.69)	0.243	1.21 (0.62 to 2.35)	0.579	12/134 −9.0	1.61 (0.70 to 3.71)	0.259	1.28 (0.52 to 3.17)	0.592
	30–39	17/172 −9.9	0.81 (0.42 to 1.55)	0.520	0.71 (0.37 to 1.39)	0.324	6/172 −3.5	0.59 (0.22 to 1.62)	0.307	0.50 (0.18 to 1.39)	0.182
	40–49	33/259 −12.7	1.07 (0.62 to 1.87)	0.799	1.01 (0.57 to 1.77)	0.982	15/259 −5.8	1.01 (0.46 to 2.21)	0.982	0.93 (0.42 to 2.08)	0.862
	50–59	31/307 10.1	0.83 (0.47 to 1.45)	0.504	0.79 (0.45 to 1.39)	0.412	7/307 −2.3	0.38 (0.15 to 0.99)	0.048	0.35 (0.14 to 0.93)	0.035
	60 and above	25/209 −12.0	Reference		Reference		12/209 −5.7	Reference		Reference
Final education	Lower than college degree	53/511 −10.4	0.76 (0.53 to 1.11)	0.158	0.72 (0.49 to 1.06)	0.096	17/511 −3.3	0.53 (0.29 to 0.95)	0.033	0.48 (0.26 to 0.89)	0.020
Final education	College degree or higher	75/570 −13.2	Reference		Reference		35/570 −6.1	Reference		Reference
Combustible tobacco use in the last year	Non smoker	24/224 −10.7	0.87 (0.54 to 1.39)	0.558	0.85 (0.53 to 1.38)	0.518	11/224 −4.9	1.03 (0.52 to 2.03)	0.937	1.05 (0.52 to 2.13)	0.893
Combustible tobacco use in the last year	Ever smoker	104/857 −12.1	Reference		Reference		41/857 −4.8	Reference		Reference
Do you think HTP use is also forbidden in places where tobacco smoking is forbidden?	No	46/277 −16.6	1.75 (1.19 to 2.59)	0.005	1.80 (1.21 to 2.67)	0.004	22/277 −7.9	2.23 (1.26 to 3.93)	0.006	2.35 (1.31 to 4.19)	0.004
	Yes	82/804 −10.2	Reference		Reference		30/804 −3.7	Reference		Reference
Do you think passive smoking of HTP is harmful?	No	54/506 −10.7	0.81 (0.56 to 1.17)	0.265	0.76 (0.52 to 1.11)	0.154	21/506 −4.2	0.76 (0.43 to 1.34)	0.343	0.68 (0.38 to 1.23)	0.204
Do you think passive smoking of HTP is harmful?	Yes	74/575 −12.9	Reference		Reference		31/575 −5.4	Reference		Reference
Total		128/1081 −11.8					52/1081 −4.8

CI, confidence interval; HTP, heated tobacco product; OR, odds ratio.