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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Res Aging. 2014 Sep 15;37(7):671–694. doi: 10.1177/0164027514550834

Table 2.

Participant Characteristics in the SAGES Cohort (N=300)

Characteristic Mean or N
(SD or
percent)
Observed
range
Age at Surgery, mean (SD) 76.9 (5.0) 70.1, 92.6
Sex (Female), n (%) 166 (55.3)
White, n (%) 284 (94.7)
Married, n (%) 170 (62.3)
Education (years), mean (SD) 15.0 (2.9) 5.0, 20.0
Charlson comorbidity score, n (%)
   None 88 (29.3)
   One 69 (23.0)
   More than one 143 (47.7)
Surgery type, n (%)
   Orthopedic 253 (84.3)
   Vascular 16 (5.3)
   Gastrointestinal 31 (10.3)
Postoperative APACHEII score, mean (SD) 13.9 (2.8) 7.0, 24.0
3MS score, mean (SD) 93.2 (5.5) 71.0, 100.0
MOS SF-12 Functional ability
   Physical composite T-score, mean (SD) 35.6 (10.1) 13.8, 54.8
   Mental composite T-score, mean (SD) 50.2 (8.2) 15.6, 67.2
Physical and social functioning
   Minnesota leisure time metabolic equivalents (Kcal/week), mean (SD) 802.1 (949.5) 0.0, 2693.9
   EPESE physical activities (number of activities), mean (SD) 5.9 (2.0) 0.0, 9.0
   Gait speed (meters/second), mean (SD) 0.7 (0.3) 0.2, 1.5
Outcomes of hospitalization
   Rehabilitation facility placement at discharge, n (%) 175 (58.3)
   Hospital length of stay (days), mean (SD) 5.3 (2.5) 3.0, 26.0

SD: standard deviation. ADL: Activities of daily living. IADL: Independent activities of daily living. MOS SF-12: Medical Outcomes Study Standard Form 12-item questionnaire. EPESE: Established Populations for Epidemiologic Studies of the Elderly