Table 2.
Hysterectomy (unmatched) | Hysterectomy (propensity score matched) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
No | Yes | No | Yes | |||||||
|
||||||||||
N | (%) | N | (%) | p-value | N | (%) | N | (%) | p-value | |
363,051 | (95.0) | 19,304 | (5.0) | 38,608 | 19,304 | |||||
Age | <0.0001 | 0.16 | ||||||||
<60 | 317,033 | (87.3) | 14,684 | (76.1) | 29,165 | (75.5) | 14,684 | (76.1) | ||
≥60 | 46,018 | (12.7) | 4620 | (23.9) | 9443 | (24.5) | 4620 | (23.9) | ||
Race | <0.0001 | <0.0001 | ||||||||
White | 217,504 | (59.9) | 10,898 | (56.5) | 22,162 | (57.4) | 10,898 | (56.5) | ||
Black | 68,554 | (18.9) | 3663 | (19.0) | 7595 | (19.7) | 3663 | (19.0) | ||
Other | 76,993 | (21.2) | 4743 | (24.6) | 8851 | (22.9) | 4743 | (24.6) | ||
Unknown | 0 | – | 0 | – | ||||||
Year of diagnosis | <0.0001 | 0.55 | ||||||||
2000 | 6360 | (1.8) | 71 | (0.4) | 167 | (0.4) | 71 | (0.4) | ||
2001 | 11,689 | (3.2) | 139 | (0.7) | 279 | (0.7) | 139 | (0.7) | ||
2002 | 32,037 | (8.8) | 316 | (1.6) | 620 | (1.6) | 316 | (1.6) | ||
2003 | 47,644 | (13.1) | 847 | (4.4) | 1751 | (4.5) | 847 | (4.4) | ||
2004 | 44,970 | (12.4) | 1398 | (7.2) | 2791 | (7.2) | 1398 | (7.2) | ||
2005 | 44,791 | (12.3) | 1844 | (9.6) | 3796 | (9.8) | 1844 | (9.6) | ||
2006 | 48,095 | (13.3) | 2618 | (13.6) | 5152 | (13.3) | 2618 | (13.6) | ||
2007 | 43,642 | (12.0) | 3158 | (16.4) | 6322 | (16.4) | 3158 | (16.4) | ||
2008 | 39,144 | (10.8) | 3883 | (20.1) | 7534 | (19.5) | 3883 | (20.1) | ||
2009 | 36,600 | (10.1) | 4153 | (21.5) | 8315 | (21.5) | 4153 | (21.5) | ||
2010 | 8078 | (2.2) | 877 | (4.5) | 1881 | (4.9) | 877 | (4.5) | ||
Insurance | <0.0001 | 0.29 | ||||||||
Commercial | 270,890 | (74.6) | 13,311 | (69.0) | 26,668 | (69.1) | 13,311 | (69.0) | ||
Medicare | 39,415 | (10.9) | 3499 | (18.1) | 7158 | (18.5) | 3499 | (18.1) | ||
Medicaid | 27,857 | (7.7) | 1267 | (6.6) | 2482 | (6.4) | 1267 | (6.6) | ||
Uninsured | 13,253 | (3.7) | 827 | (4.3) | 1546 | (4.0) | 827 | (4.3) | ||
Unknown | 11,636 | (3.2) | 400 | (2.1) | 754 | (2.0) | 400 | (2.1) | ||
Marital status | <0.0001 | 0.46 | ||||||||
Married | 204,460 | (56.3) | 9875 | (51.2) | 19,912 | (51.6) | 9875 | (51.2) | ||
Single | 65,451 | (18.0) | 3746 | (19.4) | 7521 | (19.5) | 3746 | (19.4) | ||
Unknown | 93,140 | (25.7) | 5683 | (29.4) | 11,175 | (28.9) | 5683 | (29.4) | ||
Area of residence | <0.0001 | 0.36 | ||||||||
Metropolitan | 327,639 | (90.3) | 18,278 | (94.7) | 36,485 | (94.5) | 18,278 | (94.7) | ||
Non-metropolitan | 35,412 | (9.8) | 1026 | (5.3) | 2123 | (5.5) | 1026 | (5.3) | ||
Region | ||||||||||
Eastern | 42,550 | (11.7) | 2616 | (13.6) | 5233 | (13.6) | 2616 | (13.6) | ||
Midwest | 71,617 | (19.7) | 3733 | (19.3) | 7244 | (18.8) | 3733 | (19.3) | ||
Southern | 203,152 | (56.0) | 11,075 | (57.4) | 22,712 | (58.8) | 11,075 | (57.4) | ||
Western | 45,732 | (12.6) | 1880 | (9.7) | 3419 | (8.9) | 1880 | (9.7) | ||
Cancer | <0.0001 | 0.01 | ||||||||
No | 318,583 | (87.8) | 13,187 | (68.3) | 25,973 | (67.3) | 13,187 | (68.3) | ||
Yes | 44,468 | (12.3) | 6117 | (31.7) | 12,635 | (32.7) | 6117 | (31.7) | ||
Comorbidity | 0.16 | |||||||||
0 | 254,097 | (70.0) | 9872 | (51.1) | 19,516 | (50.6) | 9872 | (51.1) | ||
1 | 61,796 | (17.0) | 4471 | (23.2) | 9215 | (23.9) | 4471 | (23.2) | ||
≥2 | 47,158 | (13.0) | 4961 | (25.7) | 9877 | (25.6) | 4961 | (25.7) | ||
Hospital type | <0.0001 | <0.0001 | ||||||||
Non-teaching | 209,872 | (57.8) | 10,111 | (52.4) | 19,508 | (50.5) | 10,111 | (52.4) | ||
Teaching | 153,179 | (42.2) | 9193 | (47.6) | 19,100 | (49.5) | 9193 | (47.6) | ||
Hospital size | 0.002 | |||||||||
<400 beds | 173,907 | (47.9) | 8461 | (43.8) | 17,490 | (45.3) | 8461 | (43.8) | ||
400–600 beds | 109,211 | (30.1) | 5060 | (26.2) | 10,000 | (25.9) | 5060 | (26.2) | ||
>600 beds | 79.933 | (22.0) | 5783 | (30.0) | 11,118 | (28.8) | 5783 | (30.0) | ||
Hospital volume | <0.0001 | 0.25 | ||||||||
Low | 113,736 | (31.3) | 4142 | (21.5) | 8498 | (22.0) | 4142 | (21.5) | ||
Intermediate | 124,157 | (34.2) | 6503 | (33.7) | 12,812 | (33.2) | 6503 | (33.7) | ||
High | 125,158 | (34.5) | 8659 | (44.9) | 17,298 | (44.8) | 8659 | (44.9) | ||
Surgeon volume | <0.0001 | 0.36 | ||||||||
Low | 127,537 | (35.1) | 4561 | (23.6) | 9375 | (24.3) | 4561 | (23.6) | ||
Intermediate | 119,980 | (33.1) | 4302 | (22.3) | 8571 | (22.2) | 4302 | (22.3) | ||
High | 105,656 | (29.1) | 9943 | (51.5) | 19,692 | (51.0) | 9943 | (51.5) | ||
Unknown | 9878 | (2.7) | 498 | (2.6) | 970 | (2.5) | 498 | (2.6) | ||
Other procedures | ||||||||||
Small bowel resection | 1545 | (0.4) | 273 | (1.4) | <0.0001 | 540 | (1.4) | 273 | (1.4) | 0.88 |
Colon resection | 2461 | (0.7) | 429 | (2.2) | <0.0001 | 812 | (2.1) | 429 | (2.2) | 0.35 |
Rectosigmoid resection | 3740 | (1.0) | 666 | (3.5) | <0.0001 | 1243 | (3.2) | 666 | (3.5) | 0.14 |
Lysis of adhesion | 73,797 | (20.3) | 5573 | (28.9) | <0.001 | 11,319 | (29.3) | 5573 | (28.9) | 0.26 |