Table 4.

Crosstabulation of the SOGS and group membership

SOGS cut-off	Group membership		Row total	Hit rate	Sensitivity	Specificity	False positive	False negative
	General community	Gambling treatment
<5	256	1	257	349/377	93/94	256/283	27/120	1/257
5+	27	93	120	0.93	0.99	0.90	0.23	0.004
<6	260	1	261	353/377	93/94	260/283	23/116	1/261
6+	23	93	116	0.94	0.99	0.92	0.20	0.004
<7	264	5	269	353/377	89/94	264/283	19/108	5/269
7+	19	89	108	0.94	0.95	0.94	0.17	0.02
<8	274	8	282	360/377	86/94	274/283	9/95	8/282
8+	9	86	95	0.95	0.92	0.97	0.10	0.03
<9	279	13	292	360/377	81/94	279/283	4/85	13/292
9+	4	81	85	0.95	0.86	0.98	0.05	0.04
<10	280	21	301	353/377	73/94	280/283	3/76	21/301
10+	3	73	76	0.94	0.78	0.99	0.04	0.07
<11	280	31	311	343/377	63/94	280/283	3/66	31/311
11+	3	63	66	0.91	0.67	0.99	0.05	0.10
<12	280	38	318	336/377	56/94	280/283	3/59	38/318
12+	3	56	59	0.60	0.60	0.99	0.05	0.12
Column total	283	94	377

Base rate: 94/377 = 0.25