An Investigation of Cigarettes Smoking Behavior and Nicotine Dependence among Chinese Methamphetamine Users in Two Provinces

Table 3

Association between drug-use pattern and nicotine dependence among MA users.

	FTND
	LMD (≤5)		HD (>5)		𝜒^2	𝑃
	𝑛	%	𝑛	%
Treatment times					0.725	0.395
First entry	130	57.0	98	43.0
More than once	67	52.3	61	47.7
Cumulative use time					0.410	0.522
≤8 months	102	56.7	78	43.3
>8 months	90	53.3	79	46.7
Administration route of MA
Smoking	193	55.1	157	44.9		0.696
Intravenous injection	2	100.0	0	0		0.504
Usual dose of MA					10.776	0.001
≤0.2 g	117	63.2	68	36.8
>0.2 g	76	45.8	90	54.2
Ever-use of heroin^a					7.582	0.006
No	156	59.1	108	40.9
Yes	28	40.6	41	59.4
Ever-use of MDMA (‘‘Ecstasy")^a					8.178	0.004
No	169	58.9	118	41.1
Yes	27	39.7	41	60.3
Ever-use of marijuana^a					2.396	0.122
No	181	56.60	139	43.40
Yes	15	42.90	20	57.10
Ever-use of ketamine^a					4.290	0.038
No	162	58.1	117	41.9
Yes	34	44.7	42	55.3
Ever-use of alcohol^a					6.729	0.009
No	102	63.4	59	36.6
Yes	91	49.5	93	50.5

aEver-use means the participant had ever used the substance before the survey started, but not necessarily concurrent with MA.