Table 1 Patient Characteristics at baseline
Cohort Characteristics | Women with TJR* Cases n = 1106 | Women without a TJR* Non-cases n = 4749 | |||
|---|---|---|---|---|---|
% | OA | % | No. | p-value | |
Age at baseline, years | |||||
Mean (No.) | 71.2 (n = 1106) | 70.1 (n = 4749) | < 0.001 | ||
SD | 6.39 | 6.57 | |||
BMI | |||||
Mean (No.) | 27.4 (n = 1066) | 25.9 (n = 4571) | < 0.001 | ||
SD | 4.45 | 4.17 | |||
Daily Smoking (yes/no) | 0.001 | ||||
Never | 49.8 | 550/1105 | 46.8 | 2217/4740 | |
Current | 18.4 | 202/1105 | 23.5 | 1113/4740 | |
Previous | 31.9 | 353/1105 | 29.7 | 1410/4740 | |
Alcohol (≥7 drinks/week) | 31.9 | 350/1097 | 32.7 | 1546/4724 | 0.61 |
Walking (≥10 min/week) | 90.5 | 1000/1105 | 91.6 | 43,742/4739 | 0.25 |
Education: | 0.65 | ||||
Primary school | 72.1 | 797/1105 | 71.4 | 3381/4736 | |
High school | 21.4 | 237/1105 | 21.34 | 1013/4736 | |
University | 6.4 | 71/1105 | 7.2 | 342/4736 | |
Osteoarthritis | 59.8 | 661/1106 | 28.1 | 1332/4749 | < 0.001 |
Rheumatoid Arthritis | 3.8 | 42/1106 | 3.3 | 155/4749 | 0.62 |
Osteoporosis | 9.7 | 107/1106 | 12.1 | 577/4749 | 0.02 |
Diabetes mellitus | 4.9 | 54/1106 | 3.7 | 175/4749 | 0.08 |
sCardiovascular disease | 50.8 | 565/1106 | 48.0 | 2279/4749 | 0.08 |