TABLE 3—

Percentages of Daily Smoking, by Drug Use Characteristics: Drug Use Forecasting Program Participants, 1997

	New York		Los Angeles
	Daily Smokers (n = 296), %	Non–daily smokers (n = 126), %	Daily Smokers (n = 146), %	Non–daily smokers (n = 357), %
Positive urine test (any illicit drug)	91.2	8.8	94.5	5.5
Positive urine test (excluding marijuana)	80.1	19.9	80.3	19.7
Recent cocaine use	73.0*	27.0	63.0	37.0
Recent crack use (self-report only)	39.9	60.1	45.9	54.1
Recent heroin use	26.4**	73.6	13.0	87.0
Recent injection drug use (self-report, 30 days)	10.1	89.9	11.6	88.4
Recent marijuana use	25.7	74.3	21.2	78.8
Recent amphetamine use	0.0	0.0	87.5**	12.5
Recent methamphetamine use	0.0	0.0	95.8**	4.2

Note. Non–daily smokers included women who smoked on 29 days or fewer in the past month. All “recent” use refers to the 72 hours before arrest, confirmed by enzyme-multiplied immunoassay technique analysis except where indicated. All χ² tests of significance compared daily smokers in New York with daily smokers in Los Angeles.

* P < 0.05 (χ²);

**P < .001 (χ²).