Table 1

Characteristics of Medicare beneficiaries and facet joint interventions.

% of increase from


1997

2002

2006

2002-2006

1997-2006


US Population (,000)

267,784

288,369

299,395

3.8%

11.8%


> = 65 years (,000)

34,933

35,602

37,125

4.3%

6.3%


Medicare Beneficiaries (,000)

38,465

40,503

43,339

7.0%

12.7%


Age

≥ 65 years

33,636

34,698

36,317

4.7%

8.0%


< 65 years

4,829

5,805

7,022

21.0%

45.4%


Gender

Male

40.70%

43.85%

44.16%

0.7%

8.5%


Female

59.30%

56.15%

55.84%

-0.6%

-5.8%


Facet joint intervention patients and visits


Number of Medicare patients receiving facet joint interventions

46,640

119,160

254,720

114%

446%


Patients per 100,000 Medicare beneficiaries

121

294

588

100%

386%


Number of visits

88,280

225,280

543,900

141%

516%


Visits per 100,000 Medicare beneficiaries

230

556

1,255

126%

446%


Services

233,200

607,760

1,688,180

178%

624%


Interventions per 100,000 Medicare beneficiaries

606

1,501

3,895

160%

543%


Average visits per patient

1.9

1.9

2.1

0

0.2%


Facet joint interventions by age


Patients

< 65 years

Number of patients

9,800

27,060

65,420

142%

568%


Rate (per 100,000)

25

67

151

125%

504%


≥ 65 years

Number of patients

36,840

92,100

189,300

106%

414%


Rate (per 100,000)

96

227

437

93%

355%


Visits

< 65 years

Number of visits

19,840

54,960

154,760

182%

680%


Rate (per 100,000)

52

136

357

163%

587%


≥ 65 years

Number of visits

68,440

170,320

389,140

128%

469%


Rate (per 100,000)

178

421

898

113%

404%


Services

< 65 years

Number of services

56,040

148,720

495,480

233%

784%


Rate (per 100,000)

146

367

1,143

211%

683%


≥ 65 years

Number of services

177,160

459,040

1,192,700

160%

573%


Rate (per 100,000)

461

1,131

2,752

143%

498%


Manchikanti et al. BMC Health Services Research 2010 10:84   doi:10.1186/1472-6963-10-84

Open Data