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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: J Am Geriatr Soc. 2008 Nov 20;57(1):1–10. doi: 10.1111/j.1532-5415.2008.02063.x

Table 1.

Characteristics for Propensity Score Matched and Unmatched Control and Intervention Patients

Propensity Score Matched Patients Unmatched Patients

Control (N=88) Weighted Value Intervention (N=129) Weighted Value P Control (N=10) Intervention (N=21)

Women 74.4 % 76.7 % .72 10 (100 %) 9 (43 %)

Mean age in years (sd) 70.9 (8.3) 70.9 (9.9) .95 76 (10.6) 71 (11.5)

Race .71
 White 58.6 % 63.2 % 9 (90 %) 7 (33 %)
 African American 21.8 % 23.0 % 0 9 (43 %)
 Hispanic 14.9 % 9.2 % 0 1 (5 %)
 Other 4.6 % 4.6 % 1 (10 %) 4 (19%)

Insurance .56
 Medicare 81.4 % 76.7 % 10 (100%) 13 (62%)
 Medicaid 5.8 % 4.7 % 0 1 (5 %)
 Other 12.8 % 18.6 % 0 7 (33 %)

Surgery .99
 Hip fracture repair 20.9 % 20.9 % 8 (80 %) 4 (19 %)
 Total hip replacement 24.4 % 24.4 % 1 (10 %) 5 (24 %)
 Total knee replacement 54.7 % 54.7 % 1 (10 %) 12 (57)

Pre-hospital residence .55
 Home/apartment 88.8 % 86.5 % 10 (100) 20 (94 %)
 Nursing home 1.2 % 3.5 % 0 1 (5 %)

Self-perceived health related quality of life .83
 Excellent 14.9 % 14.1 % 3 (30) 3 (14)
 Very Good 24.1 % 31.8 % 3 (30) 5 (24)
 Good 39.1 % 35.3 % 2 (20) 5 (24)
 Fair 14.9 % 14.1 % 1 (10) 8 (38)
 Poor 6.9 % 4.7 % 1(10) 0

Geriatric depression score (sd) 2.9 (2.8) 2.6 (2.5) .38 3.8 (4.0) 3.2 (3.4)

Rand comorbidity index (sd) 1.7 (1.1) 1.6 (1.1) .45 1.7 (1.2) 2.1 (1.7)

Fim total score prior to surgery (sd) 85.0 (7.3) 85.4 (5.8) .66 86.1 (9.7) 82.1 (11.8)

Fim locomotion score prior to surgery (sd) 11.3 (2.6) 11.7 (2.0) .18 12.9 (1.9) 10.8 (2.9)

Fim locomotion score on admission to rehabilitation (sd) 4.0 (2.5) 4.4 (2.9) .44 2.3 (1.1) 3.4 (2.5)

Pain at rest on admission .57
None 12.8 % 17.4 % 1 (10 %) 2 (9.5 %)
Mild 31.4 % 32.6 % 4 (40 %) 7 (33 %)
Moderate 27.9 % 25.6 % 1 (10 %) 6 (28.6 %)
Severe-very severe 27.9 % 24.4% 4 (40 %) 6 (28.6 %)

Pain with transfer from bed to chair on admission .38
None 1.2 % 5.9 % 0 0
Mild 25.9 % 17.6 % 3 (30 %) 5 (23.8 %)
Moderate 29.4 % 30.6 % 3 (30 %) 5 (23.8 %)
Severe-very severe 43.8 % 45.8 % 4 (40 %) 11 (52.3 %)

Pain with walking on admission .87
None 8.3 % 7.3 % 0 1 (4.8 %)
Mild 27.4 % 23.2 % 1 (10 %) 6 (28.6 %)
Moderate 27.4 % 32.9 % 5 (50 %) 4 (19 %)
Severe-very severe 36.9 % 36.7 % 4 (40 %) 10 (47.6 %)

Sit to stand time .95
 Unable to perform task 12.9 % 11.6 % 4 (40 %) 5 (22.7 %)
 > 56 seconds 15.3 % 15.1 % 3 (30 %) 10 (45.5 %)
 36-55.9 seconds 23.5 % 20.9 % 0 5 (22.7 %)
 26-35.9 seconds 23.5 % 29.1 % 2 (20 %) 1 (4.5 %)
 < 26 seconds 24.7 % 23.3 % 1 (10 %) 1 (4.5 %)

Average time for 8 foot walk .97
 Unable to perform task 12.6 % 10.6 % 4 (40 %) 3 (13.6 %)
 > 19 seconds 16.1 % 16.5 % 3 (30 %) 9 (40.9 %)
 12.0 to 18.9 seconds 21.8 % 21.2 % 0 5 (22.7 %)
 7.5 to 11.9 seconds 31.0 % 29.4 % 2 (20 %) 3 (13.6 %)
 <7.5 seconds 18.4 % 22.4 % 1 (10 %) 2 (9.1 %)