| Variable | Severe obesity () | Controls () | value |
| Sex, male, no (%)* | 32 (76) | 32 (76) | ā | Age, yr, mean (SD) | 53 (15) | 59 (14) | 0.06 | Weight, kg, mean (SD) | 158.8 (25.3) | 69.3 (12.4) | <0.0001 | Height, cm, mean (SD) | 177.6 (10.2) | 173.1 (10.3) | 0.05 | Body mass index, kg/m2, mean (SD) | 50.9 (8.3) | 23.0 (3.0) | <0.0001 | Reason for requiring rehabilitation, no (%)* | | | | āOrthopaedic surgery | 26 (62) | 26 (62) | ā | āAcute medical illness | 8 (19) | 8 (19) | ā | āStroke, brain or spinal cord injury | 8 (19) | 8 (19) | ā | āāMarried or common law | 18 (43) | 19 (45) | 0.83 | āāSingle or widow | 24 (57) | 23 (55) | 0.83 | Employment status, no (%) | | | | āāEmployed | 13 (31) | 17 (40) | 0.36 | āāUnemployed or social assistance | 13 (31) | 11 (26) | 0.63 | āāRetired | 16 (38) | 14 (33) | 0.65 | Smoking, no (%) | | | | āāNever | 18 (43) | 15 (36) | 0.50 | āāCurrent | 5 (12) | 13 (31) | 0.03 | āāFormer | 19 (45) | 14 (33) | 0.26 | Hypertension | 39 (92) | 19 (45) | <0.0001 | Diabetes, no (%) | 36 (86) | 12 (29) | <0.0001 | Dyslipidemia, no (%) | 19 (45) | 12 (29) | 0.11 | Stroke, no (%) | 9 (21) | 7 (17) | 0.58 | Heart disease, no (%) | 16 (38) | 8 (19) | 0.05 | Peripheral vascular disease, no (%) | 6 (14) | 5 (12) | 0.75 | Chronic obstructive pulmonary disease, no (%) | 5 (12) | 11 (26) | 0.10 | Asthma, no (%) | 3 (7) | 0 (0) | 0.08 | Sleep apnea, no (%) | 18 (43) | 0 (0) | <0.0001 | Cancer, no (%) | 0 (0) | 3 (7) | 0.08 | Arthritis, no (%) | 16 (38) | 8 (19) | 0.05 | Dementia, no (%) | 4 (10) | 6 (14) | 0.50 | Mental illness, no (%) | 20 (48) | 12 (29) | 0.07 | Neurological disease, no (%) | 10 (24) | 3 (7) | 0.03 | Renal failure, no (%) | 12 (29) | 4 (10) | 0.03 | Pressure ulcer, no (%) | 9 (21) | 7 (17) | 0.58 | Venous thromboembolic disease, no (%) | 4 (10) | 3 (7) | 0.69 |
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