Table 1 Frequency (%) of demographic and health status characteristics of study cohort, stratified by type of joint replacement
From: Differential item functioning of the SF-12 in a population-based regional joint replacement registry
Characteristic | THA n (%) | TKA n (%) | Overall n (%) |
|---|---|---|---|
Total | 3714 (42.1) | 5106 (57.9) | 8820 (100.0) |
Sex | |||
 Female | 1982 (53.4) | 3074 (60.2) | 5056 (57.3) |
 Male | 1732 (46.6) | 2032 (39.8) | 3764 (42.7) |
Age | |||
 ≤ 60 years | 1253 (33.7) | 1534 (30.0) | 2787 (31.6) |
 61–70 years | 1214 (32.6) | 1938 (38.0) | 3152 (35.7) |
 > 70 years | 1247 (33.6) | 1634 (32.0) | 2881 (32.7) |
Body Weight Status | |||
 Under weight or normal weight (BMI < = 25.0) | 755 (20.3) | 533 (10.4) | 1288 (14.6) |
 Overweight (BMI = 25.1–29.9) | 1406 (37.9) | 1466 (28.7) | 2872 (32.6) |
 Obese (BMI = 30.0+) | 1553 (41.8) | 3107 (60.8) | 4660 (52.8) |
Multimorbidity | |||
 2+ Chronic conditions | 1986 (53.5) | 3174 (62.2) | 5160 (58.5) |
 < 2 Chronic conditions | 1728 (46.5) | 1932 (37.8) | 3660 (41.5) |
Chronic Conditions | |||
 Hypertension | 1639 (44.1) | 2725 (53.4) | 4364 (49.5) |
 Other osteoarthritis | 1476 (39.7) | 2272 (44.5) | 3748 (42.5) |
 Back pain | 1450 (39.0) | 1914 (37.5) | 3364 (38.1) |
 Diabetes | 417 (11.2) | 913 (17.9) | 1330 (15.1) |
 Heart disease | 385 (10.4) | 559 (10.9) | 944 (10.7) |
 Depression | 395 (10.6) | 705 (13.8) | 1100 (12.5) |
 Rheumatoid arthritis | 294 (7.9) | 585 (11.5) | 879 (10.0) |
 Stomach ulcer | 168 (4.5) | 337 (6.6) | 505 (5.7) |
 Cancer | 183 (4.9) | 234 (4.6) | 417 (4.7) |
 Anemia | 153 (4.1) | 228 (4.5) | 381 (4.3) |
 Lung disease | 165 (4.4) | 263 (5.2) | 428 (4.9) |
 Kidney disease | 72 (1.9) | 104 (2.0) | 176 (2.0) |
 Liver disease | 36 (1.0) | 58 (1.1) | 94 (1.1) |
 Other condition | 741 (20.0) | 1165 (22.8) | 1906 (21.6) |