Table 2.
Patient demographic and clinical characteristics
| Variable | Appropriate (n = 341) | Inappropriate (n = 131) | P |
|---|---|---|---|
| Age (years) | 0.614 | ||
| ≤ 65 | 258 (75.7) | 102 (77.9) | |
| > 65 | 83 (24.3) | 29 (22.1) | |
| Gender | 0.014 | ||
| Male | 248 (72.7) | 80 (61.1) | |
| Female | 93 (27.3) | 51 (38.9) | |
| Medical insurance | 0.570 | ||
| Yes | 281 (82.4) | 105 (80.2) | |
| No | 60 (17.6) | 26 (19.8) | |
| Intraoperative blood loss (mL) | 0.002 | ||
| < 1500 | 312 (91.5) | 130 (99.2) | |
| ≥ 1500 | 29 (8.5) | 1 (0.8) | |
| Grade of surgery | 0.304 | ||
| 1–2 | 18 (5.3) | 4 (3.1) | |
| 3–4 | 323 (94.7) | 127 (96.9) | |
| Concomitant medications | |||
| Antithrombotics | 163 (47.8) | 26 (19.8) | < 0.001 |
| NSAIDs | 65 (19.1) | 29 (22.1) | 0.454 |
| Systemic corticosteroids | 0.012 | ||
| Low dose | 200 (58.7) | 83 (63.4) | |
| High dose | 121 (35.5) | 32 (24.4) | |
| PPIs-related information | |||
| Dosage form | < 0.001 | ||
| Injectable | 326 (95.6) | 44 (33.6) | |
| Oral | 15 (4.4) | 87 (66.4) | |
| Time of medical orders | < 0.001 | ||
| Workday | 341 (100) | 115 (87.8) | |
| Weekend | 0 (0.0) | 16 (12.2) | |
| Types of medical orders | < 0.001 | ||
| Standing | 316 (92.7) | 59 (45.0) | |
| Statim | 24 (7.0) | 24 (18.3) | |
| Discharge | 1 (0.3) | 48 (36.6) | |
| Professional titles of doctors | < 0.001 | ||
| Junior | 24 (7.0) | 34 (26.0) | |
| Middle | 157 (46.0) | 48 (36.6) | |
| Senior | 160 (46.9) | 49 (37.4) | |
| Number of drugs | < 0.001 | ||
| ≤ 10 | 85 (24.9) | 76 (58.0) | |
| 11–20 | 178 (52.2) | 46 (35.1) | |
| > 20 | 78 (22.9) | 9 (6.9) | |
| Length of postoperative hospital stay (days) | < 0.001 | ||
| ≤ 7 | 89 (26.1) | 93 (71.0) | |
| 8–15 | 156 (45.7) | 29 (22.1) | |
| > 15 | 96 (28.2) | 9 (6.9) | |
NSAIDs Nonsteroidal anti-inflammatory drugs