Table 2.
Surgical characteristics of patients according to body mass index categories
| Underweight < 18.5 (n = 1315) | Normal BMI 18.5–24.9 (n = 46,209) |
Overweight 25–29.9 (n = 58,945) |
Obesity Class 1 30–34.9 (n = 46,687) |
Obesity Class 2 35–39.9 (n = 28,307) |
Obesity Class 3 ≥ 40.0 (n = 25,481) |
p value | |
|---|---|---|---|---|---|---|---|
| Surgical indicationa | < 0.001 | ||||||
| Uterine fibroids | 309 (23.5) | 13,818 (29.9) | 18,405 (31.2) | 14,509 (31.1) | 8492 (30.0) | 6964 (27.3) | |
| Endometriosis/adenomyosis/pelvic pain | 291 (22.1) | 7926 (17.2) | 9217 (15.6) | 7329 (15.7) | 4550 (16.1) | 3726 (14.6) | |
| Pelvic organ prolapse or incontinence | 82 (6.2) | 4643 (10.0) | 5878 (10.0) | 3381 (7.2) | 1290 (4.6) | 526 (2.1) | |
| Abnormal uterine bleeding | 263 (20.0) | 10,621 (23.0) | 15,194 (25.8) | 13,357 (28.6) | 8982 (31.7) | 8940 (35.1) | |
| Other indications | 370 (28.1) | 9201 (19.9) | 10,251 (17.4) | 8111 (17.4) | 4993 (17.6) | 5325 (20.9) | |
| Surgical approach | < 0.001 | ||||||
| Total hysterectomy | 1208 (91.9) | 41,209 (89.2) | 52,995 (89.9) | 42,645 (91.3) | 26,307 (92.9) | 23,906 (93.8) | |
| Supracervical hysterectomy | 107 (8.1) | 5000 (10.8) | 5950 (10.1) | 4042 (8.7) | 2000 (7.1) | 1575 (6.2) | |
| Uterine weight > 250 g | 136 (10.3) | 7788 (16.9) | 10,789 (18.3) | 8722 (18.7) | 5337 (18.9) | 4997 (19.6) | < 0.001 |
| Concomitant procedures performed during hysterectomy | |||||||
| Fulguration/excision of ovarian lesions, pelvic viscera, or peritoneal surface | 58 (4.4) | 1895 (4.1) | 2101 (3.6) | 1537 (3.3) | 930 (3.3) | 779 (3.1) | < 0.001 |
| Lysis of adhesions | 48 (3.7) | 1722 (3.7) | 2498 (4.2) | 2216 (4.7) | 1565 (5.5) | 1487 (5.8) | < 0.001 |
| Bladder surgery | 56 (4.3) | 3087 (6.7) | 4353 (7.4) | 3117 (6.7) | 1642 (5.8) | 1147 (4.5) | < 0.001 |
| Ureter procedure | 11 (0.8) | 356 (0.8) | 418 (0.7) | 288 (0.6) | 180 (0.6) | 187 (0.7) | 0.063 |
| Ureterolysis | 7 (0.5) | 207 (0.4) | 266 (0.5) | 210 (0.4) | 136 (0.5) | 96 (0.4) | 0.580 |
| Appendectomy | 14 (1.1) | 314 (0.7) | 328 (0.6) | 191 (0.4) | 116 (0.4) | 88 (0.3) | < 0.001 |
| Intestinal surgery with enterotomy | 8 (0.6) | 266 (0.6) | 341 (0.6) | 323 (0.7) | 190 (0.7) | 215 (0.8) | < 0.001 |
| Intestinal surgery without enterotomy | 33 (2.5) | 1140 (2.5) | 1653 (2.8) | 1329 (2.8) | 934 (3.3) | 927 (3.6) | < 0.001 |
| Ovarian cystectomy/drainage | 1 (0.1) | 78 (0.2) | 95 (0.2) | 80 (0.2) | 51 (0.2) | 35 (0.1) | 0.788 |
| Colpopexy or vaginopexy | 78 (5.9) | 4193 (9.1) | 5189 (8.8) | 3133 (6.7) | 1311 (4.6) | 687 (2.7) | < 0.001 |
| Colporrhaphy | 43 (3.3) | 2576 (5.6) | 3403 (5.8) | 2092 (4.5) | 955 (3.4) | 541 (2.1) | < 0.001 |
| Conversion to laparotomyb | 1 (0.1) | 66 (0.1) | 90 (0.2) | 89 (0.2) | 70 (0.2) | 59 (0.2) | 0.003 |
| Contaminated or dirty/infected wound class | 18 (1.4) | 304 (0.7) | 400 (0.7) | 313 (0.7) | 179 (0.6) | 187 (0.7) | 0.039 |
| Total operative time, minutes | 115.15 (53.08) | 127.92 (63.33) | 132.27 (64.55) | 135.20 (65.09) | 137.96 (65.51) | 144.50 (67.04) | < 0.001 |
| Hospital length of stay, days | 0.94 (3.62) | 0.84 (2.60) | 0.87 (2.53) | 0.87 (3.56) | 0.89 (2.28) | 0.94 (3.48) | 0.001 |
BMI, body mass index
Data are n (%) or mean (standard deviation)
aBased on postoperative diagnosis
bBased on concurrent exploratory laparotomy or abdominal hysterectomy CPT code