Table 1.

Sociodemographic characteristics of treatment-seeking patients

	2009		2010		2011		2012		2009–2012
Age
18–24	11	2.7%	21	4.3%	22	4.8%	18	4.2%	36	4%
25–34	52	12.8%	59	12.0%	58	12.7%	45	10.5%	118	14%
35–44	95	23.3%	108	22.0%	94	20.6%	95	22.2%	199	23%
45–54	126	31.0%	145	29.5%	129	28.2%	124	29.0%	249	29%
55–64	101	24.8%	126	25.6%	121	26.5%	109	25.5%	202	23%
65+	22	5.4%	33	6.7%	33	7.2%	37	8.6%	65	7%
Gender
Female	122	30.0%	131	26.6%	133	29.1%	127	29.7%	252	29%
Male	285	70.0%	361	73.4%	324	70.9%	301	70.3%	617	71%
Commercial insurance plan
Health maintenance organization (HMO)	197	56.6%	250	60%	224	58%	202	57%	321	47%
Preferred provider organization	103	29.6%	119	28%	104	27%	94	26%	245	36%
Point of service	32	9.2%	36	9%	36	9%	34	10%	85	13%
Exclusive provider organization	14	4.0%	15	4%	14	4%	17	5%	29	4%
Indemnity insurance	5	1.4%	10	2%	18	5%	17	5%	27	4%
Total patients with private health insurance	348	86%	419	85%	386	84%	355	83%	678	78%
Patients by county
Barnstable	6	1%	9	2%	9	2%	7	2%	13	1%
Berkshire	a	a	10	2%	9	2%	11	3%	13	1%
Bristol	52	13%	63	13%	62	13%	53	12%	109	12%
Essex	41	10%	38	8%	43	9%	39	9%	88	10%
Franklin	8	2%	7	1%	8	2%	a	a	10	1%
Hampden	25	6%	38	8%	36	8%	28	6%	63	7%
Hampshire	11	3%	14	3%	10	2%	15	3%	23	3%
Middlesex	99	24%	130	26%	109	23%	105	24%	226	25%
Norfolk	60	14%	70	14%	53	11%	55	13%	122	14%
Plymouth	34	8%	32	6%	40	9%	45	10%	76	8%
Suffolk	35	8%	39	8%	37	8%	36	8%	66	7%
Worcester	40	10%	52	10%	51	11%	40	9%	87	10%
Total patients by county	414		502		467		438		897
Total patients by analytical sample	407		492		457		428		869

Note. A patient may be in more than one county within a 1-year time period.

^aSuppressed data.