Table 3.

Market basket analysis result, sorted by lift, shows which drug is predicted (C is consequent) given the presence of other drugs (+ shows antecedents) which were used on the same day.

Amphetamine	Benzodiazepine	Cocaine	Crack	Heavy Drinking	Heroin	Light Drinking	Methamphetamine	Opioid	Opium	Cannabis	Lift	Confidence	Coverage	Support	Count
		+		+				C		+	16	0.71	0.001	0.001	69
		C		+				+		+	13	0.61	0.002	0.001	69
		+		+				+		C	6.1	0.85	0.001	0.001	69
	+				+			+		C	4.8	0.67	0.002	0.001	85
		+			+			+		C	4.8	0.66	0.002	0.001	71
	+	+			+					C	4.7	0.65	0.002	0.001	89
		+						+		C	4.3	0.6	0.004	0.002	147
	+	+								C	4.1	0.56	0.002	0.001	90
					C				+		1.6	1	0.001	0.001	97
	+	+			C					+	1.6	0.99	0.001	0.001	89
	+				C	+					1.5	0.92	0.001	0.001	71
	+			+	C					+	1.5	0.92	0.001	0.001	71
	+		+		C						1.5	0.92	0.002	0.002	130
			+		C						1.5	0.9	0.048	0.044	2884
		+			C	+					1.4	0.88	0.002	0.001	93
	+	+			C						1.4	0.85	0.002	0.002	136
			+		C					+	1.4	0.85	0.005	0.005	301
		+			C						1.4	0.83	0.047	0.039	2598
					C	+					1.3	0.81	0.027	0.022	1431
					C		+				1.3	0.81	0.008	0.007	433
					C	+				+	1.3	0.8	0.004	0.003	212
+					C						1.3	0.8	0.016	0.013	851
			+		C	+					1.3	0.78	0.002	0.002	116
			+	+	C						1.3	0.77	0.002	0.002	122
+					C					+	1.2	0.72	0.003	0.002	129
		+			C					+	1.2	0.72	0.008	0.005	357
	+			+	C						1.1	0.69	0.004	0.002	163
				+	C						1.1	0.67	0.032	0.021	1415
		+		+	C						1.1	0.66	0.003	0.002	140
				+	C					+	1.1	0.65	0.006	0.004	272
					C						1	0.62	1.000	0.616	40,740
	+				C			+		+	1	0.59	0.002	0.001	85
					C					+	0.9	0.55	0.139	0.076	5011
	+				C					+	0.9	0.53	0.009	0.005	317

* +: Antecedent; C: Consequent.