Primary TKA | Primary THA | |||||
---|---|---|---|---|---|---|
Entire cohort | No Sjogren’s Syndrome | Sjogren’s Syndrome | Entire cohort | No Sjogren’s Syndrome | Sjogren’s Syndrome | |
National Projectionsa | N = 8,127,282a | N = 8,114,510a | N = 12,772a | N = 4,116,485a | N = 4,110,263a | N = 6222a |
Age, Mean (SE); median | 66.4 (0.03); 66.5 | 66.6 (0.02); 66.5 | 65.0 (0.20); 64.7 | 65.2 (0.04); 65.9 | 65.5 (0.04); 66.0 | 65.7 (0.32); 65.4 |
Age category | ||||||
< 50 | 430,141 (5.3%) | 429,384 (5.3%) | 757 (5.9%) | 449,642 (10.9%) | 449,170 (10.9%) | 472 (7.6%) |
50–64 | 2,872,619 (35.3%) | 2,867,321 (35.3%) | 5298 (41.5%) | 1,364,821 (33.2%) | 1,362,528 (33.1%) | 2293 (36.9%) |
65–79 | 3,969,942 (48.8%) | 3,963,938 (48.8%) | 6004 (47.0%) | 1,732,015 (42.1%) | 1,729,250 (42.1%) | 2765 (44.4%) |
≥ 80 | 850,131 (10.5%) | 849,418 (10.5%) | 713 (5.6%) | 566,521 (13.8%) | 565,828 (13.8%) | 693 (11.1%) |
Gender | ||||||
Female | 5,126,809 (63.1%) | 5,114,641 (63.0%) | 12,168 (95.3%) | 2,330,188 (56.6%) | 2,324,441 (56.6%) | 5747 (92.4%) |
Male | 2,985,796 (36.7%) | 2,985,197 (36.8%) | 599 (4.7%) | 1,776,722 (43.2%) | 1,776,247 (43.2%) | 475 (7.6%) |
Race | ||||||
White | 5,507,281 (67.8%) | 5,497,996 (67.8%) | 9285 (72.7%) | 2,882,041 (70.0%) | 2,877,245 (70.0%) | 4796 (77.1%) |
Black | 472,393 (5.8%) | 471,784 (5.8%) | 609 (4.8%) | 225,772 (5.5%) | 225,579 (5.5%) | 193 (3.1%) |
Hispanic | 340,292 (4.2%) | 339,802 (4.2%) | 490 (3.8%) | 104,384 (2.5%) | 104,234 (2.5%) | 150 (2.4%) |
Other/Missing | 1,807,101 (22.2%) | 1,804,713 (22.2%) | 2388 (18.7%) | 904,234 (22.0%) | 903,151 (22.0%) | 1083 (17.4%) |
Deyo-Charlson Score | ||||||
0 | 4,104,090 (50.5%) | 4,100,452 (50.5%) | 3638 (28.5%) | 2,193,574 (53.3%) | 2,191,576 (53.3%) | 1998 (32.1%) |
1 | 2,064,888 (25.4%) | 2,060,861 (25.4%) | 4027 (31.5%) | 926,286 (22.5%) | 924,372 (22.5%) | 1914 (30.8%) |
≥ 2 | 1,958,305 (24.1%) | 1,953,198 (24.1%) | 5107 (40.0%) | 996,623 (24.2%) | 994,314 (24.2%) | 2309 (37.1%) |
Primary Diagnosis | ||||||
Rheumatoid arthritis | 64,126 (0.8%) | 63,422 (0.8%) | 704 (5.5%) | 29,173 (0.7%) | 28,938 (0.7%) | 235 (3.8%) |
Aseptic bone necrosis | 21,031 (0.3%) | 20,963 (0.3%) | 68 (0.5%) | 285,623 (6.9%) | 284,864 (6.9%) | 759 (12.2%) |
Osteoarthritis | 7,866,436 (96.8%) | 7,854,625 (96.8%) | 11,811 (92.5%) | 3,447,224 (83.7%) | 3,442,590 (83.8%) | 4634 (74.5%) |
Other | 173,672 (2.1%) | 173,488 (2.1%) | 184 (1.4%) | 354,307 (8.6%) | 353,713 (8.6%) | 594 (9.5%) |
Fracture | 1904 (0.0%) | 1904 (0.0%) | 0 (0.0%) | 117 (0.0%) | 117 (0.0%) | 0 (0.0%) |
Hospital Location/Teaching | ||||||
Rural | 1,041,159 (12.8%) | 1,040,000 (12.8%) | 1159 (9.1%) | 444,188 (10.8%) | 443,736 (10.8%) | 452 (7.3%) |
Urban | 3,665,766 (45.1%) | 3,660,404 (45.1%) | 5362 (42.0%) | 1,722,391 (41.8%) | 1,719,952 (41.8%) | 2439 (39.2%) |
Urban Teaching | 3,398,114 (41.8%) | 3,391,899 (41.8%) | 6215 (48.7%) | 1,939,989 (47.1%) | 1,936,692 (47.1%) | 3297 (53.0%) |
Insurance | ||||||
Medicaid | 226,917 (2.8%) | 226,680 (2.8%) | 237 (1.9%) | 138,809 (3.4%) | 138,668 (3.4%) | 141 (2.3%) |
Medicare | 4,631,192 (57.0%) | 4,623,773 (57.0%) | 7419 (58.1%) | 2,234,674 (54.3%) | 2,230,839 (54.3%) | 3835 (61.6%) |
Other | 267,624 (3.3%) | 267,297 (3.3%) | 327 (2.6%) | 102,277 (2.5%) | 102,205 (2.5%) | 72 (1.2%) |
Private | 2,947,676 (36.3%) | 2,942,954 (36.3%) | 4722 (37.0%) | 1,600,830 (38.9%) | 1,598,692 (38.9%) | 2138 (34.4%) |
Self | 36,589 (0.5%) | 36,535 (0.5%) | 54 (0.4%) | 32,307 (0.8%) | 32,288 (0.8%) | 19 (0.3%) |
Income Category | ||||||
0-25th percentile | 1,511,693 (18.6%) | 1,509,616 (18.6%) | 2077 (16.3%) | 653,243 (15.9%) | 652,323 (15.9%) | 920 (14.8%) |
25-50th percentile | 2,156,222 (26.5%) | 2,153,260 (26.5%) | 2962 (23.2%) | 1,009,677 (24.5%) | 1,008,178 (24.5%) | 1499 (24.1%) |
50-75th percentile | 2,158,012 (26.6%) | 2,154,363 (26.5%) | 3649 (28.6%) | 1,086,953 (26.4%) | 1,085,319 (26.4%) | 1634 (26.3%) |
75-100th percentile | 2,151,430 (26.5%) | 2,147,588 (26.5%) | 3842 (30.1%) | 1,285,854 (31.2%) | 1,283,805 (31.2%) | 2049 (32.9%) |
Hospital Bed size | ||||||
Small | 1,408,128 (17.3%) | 1,405,774 (17.3%) | 2354 (18.4%) | 685,209 (16.6%) | 684,163 (16.6%) | 1046 (16.8%) |
Medium | 2,107,249 (25.9%) | 2,103,919 (25.9%) | 3330 (26.1%) | 1,037,561 (25.2%) | 1,036,014 (25.2%) | 1547 (24.9%) |
Large | 4,589,661 (56.5%) | 4,582,609 (56.5%) | 7052 (55.2%) | 2,383,797 (57.9%) | 2,380,202 (57.9%) | 3595 (57.8%) |
Hospital Region | ||||||
Northeast | 1,359,230 (16.7%) | 1,357,194 (16.7%) | 2036 (15.9%) | 818,699 (19.9%) | 817,401 (19.9%) | 1298 (20.9%) |
Midwest | 2,269,799 (27.9%) | 2,266,484 (27.9%) | 3315 (26.0%) | 1,089,883 (26.5%) | 1,088,481 (26.5%) | 1402 (22.5%) |
South | 2,957,629 (36.4%) | 2,953,077 (36.4%) | 4552 (35.6%) | 1,358,856 (33.0%) | 1,356,707 (33.0%) | 2149 (34.5%) |
West | 1,540,624 (19.0%) | 1,537,755 (19.0%) | 2869 (22.5%) | 849,045 (20.6%) | 847,673 (20.6%) | 1372 (22.1%) |
In-hospital Complications and Healthcare Utilization | ||||||
Transfusion | 1,288,545 (15.9%) | 1,286,034 (15.8%) | 2511 (19.7%) | 937,802 (22.8%) | 935,821 (22.8%) | 1981 (31.8%) |
Implant Infection | 8165 (0.1%) | 8151 (0.1%) | 14 (0.1%) | 7592 (0.2%) | 7573 (0.2%) | 19 (0.3%) |
Implant Revision | 15,310 (0.2%) | 15,281 (0.2%) | 29 (0.2%) | 17,931 (0.4%) | 17,884 (0.4%) | 47 (0.8%) |
Death | 7875 (0.1%) | 7865 (0.1%) | 10 (0.1%) | 8889 (0.2%) | 8880 (0.2%) | 9 (0.2%) |
Discharge Status | ||||||
Home | 4,965,279 (61.1%) | 4,957,619 (61.1%) | 7660 (60.0%) | 2,448,107 (59.5%) | 2,444,859 (59.5%) | 3248 (52.2%) |
Rehabilitation/inpatient facility | 3,130,288 (38.5%) | 3,125,196 (38.5%) | 5092 (39.9%) | 1,649,103 (40.1%) | 1,646,152 (40.0%) | 2951 (47.4%) |
Hospital stay in days: Mean (SE); median | 3.53 (0.01); 2.70 | 3.54 (0.01); 2.70 | 3.48 (0.03); 2.68 | 3.71 (0.01); 2.74 | 3.73 (0.01); 2.75 | 3.76 (0.06); 2.77 |
Hospital stay in days | ||||||
≤ 3 | 5,218,769 (64.2%) | 5,210,306 (64.2%) | 8463 (66.3%) | 2,499,883 (60.7%) | 2,496,141 (60.7%) | 3742 (60.1%) |
> 3 | 2,908,513 (35.8%) | 2,904,204 (35.8%) | 4309 (33.7%) | 1,616,602 (39.3%) | 1,614,122 (39.3%) | 2480 (39.9%) |
Total Hospital Charges, in U.S. $, Mean (SE); Median | 42,336 (235); 35,891 | 42,441 (236); 35,946 | 46,429 (646); 39,793 | 44,635 (268); 37,658 | 44,859 (270); 37,785 | 50,084 (980); 42,495 |