Table 1.
Imaging utilization rate (number of outpatient visits with MRI/CT per 1,000 persons), by year and patient characteristics
| 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2000-2009* | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Unweighted N |
23,839 |
32,122 |
37,418 |
32,681 |
32,737 |
32,320 |
32,577 |
29,370 |
31,262 |
34,920 |
319,246 |
| Imaging utilization rate |
64.3 |
85.9 |
92.3 |
107.2 |
109.6 |
112.6 |
107.4 |
116.8 |
119.6 |
109.1 |
102.9 |
| Age | |||||||||||
| <18 |
14.3 |
20.4 |
24.2 |
29.3 |
20.3 |
27.1 |
21.4 |
24.1 |
27.4 |
26.8 |
23.6 |
| 18-44 |
44.5 |
74.7 |
67.1 |
62.9 |
87.0 |
81.1 |
80.5 |
72.7 |
73.4 |
74.8 |
71.9 |
| 45-64 |
97.5 |
121.9 |
141.3 |
186.0 |
161.5 |
170.6 |
164.1 |
171.8 |
185.8 |
172.5 |
159.1 |
| 65+ |
160.9 |
182.6 |
219.3 |
244.0 |
253.8 |
261.4 |
241.4 |
309.3 |
282.8 |
234.3 |
240.4 |
| Gender | |||||||||||
| Male |
54.7 |
78.1 |
80.3 |
92.2 |
93.5 |
98.6 |
92.6 |
106.3 |
98.8 |
99.4 |
89.8 |
| Female |
73.5 |
93.3 |
103.8 |
121.6 |
125.0 |
126.1 |
121.7 |
126.9 |
139.6 |
118.6 |
115.4 |
| Race/ethnicity | |||||||||||
| White |
73.5 |
95.9 |
108.5 |
126.3 |
128.6 |
135.3 |
127.3 |
137.9 |
146.6 |
133.7 |
121.4 |
| Non-white |
41.7 |
62.9 |
58.3 |
67.3 |
71.2 |
67.8 |
69.1 |
76.7 |
68.8 |
63.7 |
65.3 |
| Census region | |||||||||||
| Northeast |
72.3 |
109.2 |
97.1 |
108.7 |
129.3 |
120.7 |
128.8 |
140.1 |
135.3 |
112.7 |
115.6 |
| South |
64.6 |
81.5 |
93.1 |
114.6 |
112.0 |
116.4 |
109.9 |
111.2 |
102.2 |
110.3 |
102.1 |
| Midwest |
57.3 |
88.1 |
96.2 |
95.0 |
109.7 |
119.9 |
105.2 |
118.6 |
131.4 |
108.7 |
103.2 |
| West |
56.2 |
66.5 |
83.0 |
102.2 |
87.7 |
91.8 |
86.5 |
101.6 |
117.3 |
104.6 |
90.3 |
| Rural/urban residence | |||||||||||
| MSA |
61.0 |
87.1 |
89.0 |
106.3 |
106.7 |
111.9 |
105.3 |
116.0 |
118.7 |
110.2 |
101.8 |
| Non-MSA |
68.9 |
74.5 |
106.4 |
105.8 |
120.6 |
113.7 |
114.9 |
114.7 |
114.5 |
102.7 |
103.4 |
| Payer type | |||||||||||
| Medicare |
131.4 |
195.2 |
187.0 |
238.7 |
241.3 |
255.6 |
261.8 |
276.0 |
303.8 |
223.1 |
234.2 |
| Medicaid |
32.2 |
62.1 |
65.8 |
60.3 |
58.3 |
78.9 |
67.8 |
58.1 |
69.1 |
62.4 |
62.5 |
| Private |
52.8 |
78.0 |
84.0 |
91.2 |
96.7 |
97.8 |
95.1 |
98.7 |
105.4 |
96.9 |
89.6 |
| Medicare + Medicaid |
183.6 |
124.4 |
248.5 |
194.9 |
269.5 |
227.5 |
172.0 |
240.9 |
219.0 |
357.5 |
226.8 |
| Medicare + Private |
180.5 |
188.0 |
237.9 |
253.2 |
265.0 |
295.9 |
250.6 |
364.0 |
300.6 |
253.3 |
257.8 |
| Other public** |
243.0 |
235.1 |
78.4 |
100.5 |
98.2 |
122.7 |
104.7 |
133.1 |
123.4 |
149.3 |
131.4 |
| Uninsured |
32.9 |
37.2 |
30.8 |
74.3 |
61.1 |
54.8 |
58.1 |
60.6 |
48.9 |
56.2 |
51.8 |
| Other |
91.2 |
96.8 |
134.4 |
175.1 |
165.5 |
160.2 |
165.1 |
141.0 |
205.9 |
164.3 |
152.5 |
| Managed care status | |||||||||||
| Managed care |
59.0 |
80.2 |
86.4 |
97.3 |
103.1 |
107.9 |
108.3 |
118.6 |
113.4 |
114.9 |
99.9 |
| Non-managed care | 69.1 | 93.8 | 100.7 | 121.0 | 118.5 | 119.0 | 106.2 | 114.4 | 127.2 | 102.0 | 106.8 |
Source: Medical Expenditure Panel Survey 2000-2009.
MSA: Metropolitan Statistical Area.
Note: Outpatient visits include outpatient, office-based, and ER visits.
Note: Weighted results are reported to reflect US noninstitutionalized population.
Note: 2000-2009 results represent weighted, pooled data from each year from 2000-2009.
*2000-2009 estimates were calculated on a pooled sample of imaging visits over all data years.
**Other public includes Tricare, State covered insurance and other public insurance.