Table 3. Univariate Analysis for Factors Associated With Perioperative Complications and Prolonged Length of Stay.
| Characteristic | Odds Ratio for Perioperative Complication (95% CI) | P Value | Odds Ratio for Prolonged LOS (95% CI) | P Value |
|---|---|---|---|---|
| Age ≥65 y | 1.70 (0.88-3.30) | .11 | 2.48 (1.52-4.07) | <.001 |
| Female | 0.66 (0.38-1.15) | .14 | 0.76 (0.99-1.16) | .21 |
| BMI ≥30 | 0.68 (0.34-1.36) | .28 | 0.71 (0.41-1.22) | .22 |
| ASA class 3 or 4 | 4.77 (2.64-8.63) | <.001 | 3.93 (2.53-6.11) | <.001 |
| Hypertension | 1.25 (0.68-2.33) | .47 | 0.58 (0.37-0.89) | .01 |
| Diabetes | 3.85 (2.15-6.86) | <.001 | 2.98 (1.86-4.78) | <.001 |
| Previous abdominal surgery | 0.95 (0.49-1.81) | .87 | 1.51 (0.95-2.39) | .08 |
| Previous adrenal surgery | 1.51 (0.44-5.21) | .52 | 1.75 (0.68-4.49) | .25 |
| Diagnosis | ||||
| Aldosterone-producing adenoma | 1 [Reference] | NA | 1 [Reference] | NA |
| Pheochromocytoma | 8.14 (3.10-21.39) | <.001 | 8.37 (3.66-19.13) | <.001 |
| Cortisol-producing adenoma | 4.65 (1.55-13.99) | .006 | 8.82 (3.64-21.36) | <.001 |
| Nonfunctional adenoma | 1.68 (0.32-8.90) | .54 | 1.82 (0.45-7.27) | .40 |
| Metastasis | 4.98 (1.38-17.94) | .01 | 12.47 (4.70-33.12) | <.001 |
| Virilizing tumor | naa | na | 15.14 (1.22-187.41) | .03 |
| Adrenocortical carcinoma | naa | na | 60.57 (4.89-749.64) | .001 |
| Other | 2.95 (0.55-15.92) | .21 | 14.42 (4.97-41.83) | <.001 |
| Tumor size, cm | ||||
| < 4 | 1 [Reference] | NA | 1 [Reference] | NA |
| 4-6 | 1.77 (0.86-3.63) | .12 | 3.49 (2.10-5.82) | <.001 |
| ≥ 6 | 5.17 (2.66-10.05) | <.001 | 5.69 (3.23-10.00) | <.001 |
| Operation laterality | ||||
| Left | 1 [Reference] | NA | 1 [Reference] | NA |
| Right | 0.85 (0.46-1.54) | .59 | 1.67 (1.04-2.67) | .03 |
| Bilateral | 2.15 (0.91-5.04) | .08 | 5.69 (2.92-11.12) | <.001 |
| Any conversion | 13.63 (5.78-32.14) | <.001 | 75.49 (17.42-327.14) | <.001 |
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); na, not available; NA, not applicable.
a
Insufficient data.