Table 2. Sample Summary Statistics.
| Variable | No. (%) [95% CI, %] | P Value | Hedge ga | |
|---|---|---|---|---|
| With Early Physical Therapy (n = 62 889) | Without Early Physical Therapy (n = 26 096) | |||
| Age, mean (SD), y | 46.0 (11.1) | 45.7 (10.8) | <.001 | 0.03 |
| Male sex | 36 649 (58.3) [57.9-58.7] | 14 702 (56.3) [55.7-56.9] | <.001 | 0.04 |
| Congestive heart failure | 368 (0.6) [0.5-0.6] | 116 (0.4) [0.4-0.5] | .009 | 0.02 |
| Arrhythmia | 1440 (2.3) [2.2-2.4] | 548 (2.1) [1.9-2.3] | .08 | 0.01 |
| Valvular disease | 883 (1.4) [1.3-1.5] | 352 (1.4) [1.2-1.5] | .52 | <0.01 |
| Pulmonary circulation disorders | 142 (0.2) [0.2-0.3] | 50 (0.2) [0.1-0.2] | .32 | 0.01 |
| Peripheral vascular disease | 412 (0.7) [0.6-0.7] | 198 (0.8) [0.7-0.9] | .09 | 0.01 |
| Hypertension | ||||
| Uncomplicated | 13 360 (21.2) [20.9-21.6] | 5022 (19.2) [18.8-19.7] | <.001 | 0.05 |
| Complicated | 571 (0.9) [0.8-1.0] | 315 (0.8) [0.7-0.9] | .13 | 0.01 |
| Paralysis | 45 (0.07) [0.05-0.09] | 16 (0.06) [0.03-0.09] | .60 | <0.01 |
| Other neurologic disorders | 519 (0.8) [0.8-0.9] | 225 (0.9) [0.8-1.0] | .86 | <0.01 |
| Chronic obstructive pulmonary disease | 3758 (6.0) [5.8-6.2] | 1374 (5.3) [5.0-5.5] | <.001 | 0.03 |
| Diabetes | ||||
| Uncomplicated | 5500 (8.7) [8.5-9.0] | 2014 (7.8) [7.5-8.1] | <.001 | 0.03 |
| Complicated | 869 (1.4) [1.3-1.5] | 315 (1.2) [1.1-1.3] | .04 | 0.02 |
| Hypothyroidism | 3805 (6.1) [5.9-6.2] | 1661 (6.4) [6.1-6.7] | .08 | 0.01 |
| Renal failure | 328 (0.5) [0.5-0.6] | 101 (0.4) [0.3-0.5] | .008 | 0.02 |
| Liver disease | 700 (1.1) [1.0-1.2] | 303 (1.2) [1.0-1.3] | .54 | <0.01 |
| Peptic ulcer disease | 97 (0.2) [0.1-0.2] | 55 (0.2) [0.2-0.3] | .06 | 0.01 |
| AIDS/HIV | 64 (0.10) [0.08-0.13] | 38 (0.2) [0.1-0.2] | .08 | 0.01 |
| Rheumatoid arthritis/collagen vascular disease | 764 (1.2) [1.1-1.3] | 325 (1.3) [1.1-1.4] | .71 | <0.01 |
| Coagulopathy | 220 (0.4) [0.3-0.4] | 86 (0.3) [0.3-0.4] | .64 | <0.01 |
| Obesity | 1825 (2.9) [2.8-3.0] | 671 (2.6) [2.4-2.8] | .007 | 0.02 |
| Weight loss | 255 (0.4) [0.4-0.5] | 98 (0.4) [0.3-0.5] | .52 | <0.01 |
| Fluid and electrolyte disorders | 767 (1.2) [1.1-1.3] | 295 (1.1) [1.0-1.3] | .26 | <0.01 |
| Anemia | ||||
| Blood loss | 89 (0.1) [0.1-0.2] | 37 (0.1) [0.1-0.2] | .99 | <0.01 |
| Deficiency | 667 (1.1) [1.0-1.1] | 302 (1.2) [1.0-1.3] | .21 | <0.01 |
| Abuse | ||||
| Alcohol | 367 (0.6) [0.5-0.6] | 116 (0.4) [0.4-0.5] | .01 | 0.02 |
| Drug | 201 (0.3) [0.3-0.4] | 56 (0.2) [0.2-0.3] | .008 | 0.02 |
| Psychoses | 138 (0.2) [0.2-0.3] | 51 (0.2) [0.1-0.3] | .005 | <0.01 |
| Depression | 4230 (6.7) [6.5-6.9] | 1893 (7.3) [6.9-7.6] | .005 | 0.02 |
a
Hedge g is a measure of the magnitude of any differences between the 2 groups, with values less than 0.2 typically representing small differences.