Social disparities in the use of colonoscopy by primary care physicians in Ontario

BMC Gastroenterology

Table 2 Trends in the use of colonoscopy by Ontario PCPs from 1996-2005

Year	No: of PCPs	No: of screen eligible patients assigned to PCP	No: of colonoscopies	Any colonoscopy		Discretionary colonoscopy
				Median rate⁺	25th-75^th percentile	Median rate⁺	25th-75^th percentile
1996	7,955	1,512,592	24,540	1.51	0.57 - 2.62	1.26	0.38 - 2.31
1997	8,008	1,557,533	27,719	1.65	0.68 - 2.82	1.43	0.51 - 2.54
1998	7,960	1,598,434	32,478	1.86	0.86 - 3.23	1.62	0.67 - 2.89
1999	8,013	1,641,273	38,953	2.21	1.08 - 3.66	1.97	0.89 - 3.37
2000	8,077	1,680,316	46,862	2.56	1.32 - 4.25	2.33	1.11 - 3.92
2001	8,133	1,713,337	56,899	3.03	1.59 - 4.87	2.76	1.37 - 4.55
2002	8,174	1,733,178	65,576	3.4	1.85 - 5.56	3.12	1.61 - 5.22
2003	8,273	1,747,927	70,725	3.67	1.93 - 5.88	3.38	1.68 - 5.56
2004	8,365	1,781,850	83,072	4.08	2.25 - 6.63	3.77	2.00 - 6.25
2005	8,419	1,806,977	98,464	4.71	2.70 - 7.53	4.39	2.41 - 7.20

ISSN: 1471-230X