Table 1.
Comparison of demographic and clinical characteristics between the observation and control group
| Influence factor | Observation group (n=55) | Control group (n=45) | t | P |
|---|---|---|---|---|
| Gender | 0.562 | 0.757 | ||
| Male | 12 (21.82%) | 10 (22.22%) | ||
| Female | 43 (78.18%) | 35 (77.78%) | ||
| Age | 10.285 | 0.003 | ||
| ≤60 | 5 (9.09%) | 4 (8.89%) | ||
| 60-70 | 17 (30.91%) | 15 (33.33%) | ||
| ≥70 | 33 (60.00%) | 26 (57.78%) | ||
| BMI | 8.474 | 0.010 | ||
| 18.5-23.9 | 10 (18.18%) | 9 (20.00%) | ||
| 24-27.9 | 23 (41.82%) | 22 (48.89%) | ||
| ≥28 | 22 (40.00%) | 14 (31.11%) | ||
| Educational level | 0.381 | 0.537 | ||
| Junior high school or below | 30 (54.55%) | 25 (25.56%) | ||
| Middle school above high school below | 18 (32.73%) | 12 (26.67%) | ||
| High school or above | 7 (12.72%) | 8 (17.77%) | ||
| Sleep | ||||
| Good | 20 (36.36%) | 32 (71.11%) | ||
| Commonly | 18 (32.73%) | 10 (22.22%) | ||
| Bad | 17 (30.91%) | 3 (6.67%) | ||
| Disease duration | 0.628 | 0.428 | ||
| <5 years | 18 (32.73%) | 16 (35.56%) | ||
| 5-10 years | 21 (38.18%) | 14 (31.11%) | ||
| >10 years | 16 (29.09%) | 15 (33.33%) | ||
| Preoperative walking distance | 0.186 | 0.666 | ||
| >100 kilometre | 40 (72.73%) | 34 (75.56%) | ||
| ≤100 kilometre | 15 (17.27%) | 11 (24.44%) | ||
| Hospitalization time | 0.247 | 0.619 | ||
| <11.3 | 27 (49.09%) | 24 (53.33%) | ||
| ≥11.3 | 28 (50.91%) | 21 (46.67%) | ||
| Hip knee ankle angle | 8.756 | 0.009 | ||
| -3(-3)-3(3) | 4 (7.27%) | 12 (26.67%) | ||
| 3-10/-10~-3 | 18 (32.73%) | 23 (51.11%) | ||
| ≥10 | 33 (60.00%) | 10 (22.22%) | ||
| Preoperative VAS score | 8.756 | 0.001 | ||
| <6 | 18 (32.73%) | 30 (66.67%) | ||
| ≥6 | 37 (62.27%) | 15 (33.33%) | ||
| Postoperative functional exercise | 0.342 | 0.036 | ||
| Good | 9 (16.36%) | 14 (31.11%) | ||
| Commonly | 22 (40.00%) | 16 (35.56%) | ||
| Bad | 24 (43.64%) | 15 (33.33%) | ||
| Diabetes | 11.286 | 0.007 | ||
| No | 15 (27.27%) | 21 (46.67%) | ||
| Had | 40 (72.73%) | 24 (53.33%) | ||
| Surgical time | 0.247 | 0.119 | ||
| <150 | 19 (34.55%) | 17 (37.78%) | ||
| 150-165 | 13 (23.64%) | 14 (31.11%) | ||
| ≥165 | 23 (41.81%) | 14 (31.11%) | ||
| Unilateral/Bilateral Knee Replacement | 2.206 | 0.137 | ||
| Unilateral | 45 (81.82%) | 32 (71.11%) | ||
| Bilateral | 10 (18.18%) | 23 (28.89%) | ||
| Surgical bleeding volume | 0.628 | 0.428 | ||
| ≤50 | 14 (25.45%) | 9 (20.00%) | ||
| 50-100 | 17 (30.91%) | 16 (35.56%) | ||
| 100-200 | 19 (34.55%) | 10 (22.22%) | ||
| >200 | 5 (9.09%) | 10 (22.22%) | ||
| Postoperative VAS score | 8.474 | 0.010 | ||
| <3 | 27 (49.09%) | 32 (71.11%) | ||
| ≥3 | 28 (50.91%) | 13 (28.89%) | ||
| Postoperative wound infection | 10.285 | 0.003 | ||
| No | 17 (30.91%) | 36 (57.78%) | ||
| Had | 38 (69.09%) | 19 (42.22%) | ||
| Anesthesia ASA score | 0.628 | 0.428 | ||
| ≤2 | 34 (61.82%) | 28 (62.22%) | ||
| ≥3 | 21 (38.18%) | 17 (37.78%) | ||
| Heart NYHA score | 0.381 | 0.537 | ||
| ≤2 | 37 (67.27%) | 28 (62.22%) | ||
| ≥3 | 18 (32.73%) | 17 (37.78%) | ||
| Physical therapy | 0.628 | 0.428 | ||
| No | 28 (50.91%) | 21 (46.67%) | ||
| Yes | 27 (49.09%) | 24 (53.33%) |
BMI, body mass index; VAS, visual analog scale; ASA, American Society of Anesthesiologists; NYHA, New York Heart Association.