Table 5.

Classification accuracy estimates for various SOGS cut scores

SOGS cut-off	DSM-IV		Row total	Hit rate	Sensitivity	Specificity	False positive	False negative
	No	Yes
General community sample (N = 283)
<5	254	2	256	267/283	13/15	254/268	14/27	2/256
5+	14	13	27	0.94	0.86	0.95	0.52	0.007
<6	257	3	260	269/283	12/15	257/268	11/23	3/360
6+	11	12	23	0.95	0.80	0.96	0.48	0.008
<7	260	4	264	271/283	11/15	260/268	8/19	4/264
7+	8	11	19	0.96	0.73	0.97	0.42	0.02
<8	266	8	274	273/283	7/15	266/274	2/9	8/274
8+	2	7	9	0.96	0.47	0.97	0.22	0.03
<9	268	11	279	272/283	4/15	268/279	0/4	11/279
9+	0	4	4	0.96	0.27	0.96	0.00	0.04
<10	268	12	280	271/283	3/15	268/280	0/3	12/280
10+	0	3	3	0.96	0.20	0.96	0.00	0.04
Column total	268	15	283
Gambling treatment sample (N = 94)
<5	1	–	1	69/94	68/68	1/26	25/93	0/1
5+	25	68	93	0.73	1.00	0.04	0.26	0.00
<6	1	–	1	69/94	68/68	1/26	25/93	0/1
6+	25	68	93	0.73	1.00	0.04	0.26	0.00
<7	4	1	5	71/94	67/68	4/26	22/89	1/5
7+	22	67	89	0.76	0.99	0.15	0.25	0.20
<8	7	1	8	74/94	67/68	7/26	19/86	1/8
8+	19	67	86	0.79	0.99	0.30	0.22	0.12
<9	11	2	13	77/94	66/68	11/26	15/81	2/13
9+	15	66	81	0.82	0.97	0.42	0.18	0.15
<10	15	6	21	77/94	62/68	15/26	11/83	6/21
10+	11	62	83	0.82	0.91	0.58	0.11	0.28
<11	19	12	31	75/94	56/68	19/26	7/63	12/31
11+	7	56	63	0.80	0.82	0.73	0.11	0.39
<12	21	17	38	72/94	21/26	21/26	5/56	17/38
12+	5	51	56	0.77	0.75	0.81	0.09	0.45
Column total	26	68	94

General community sample base rate: 15/283 = 0.05

Gambling treatment sample base rate: 68/94 = 0.72