Table 2 Comparison of different cut-off values stratified by age group
From: Performance of age-adjusted D-dimer values for predicting DVT before the knee and hip arthroplasty
Age range (years) | |||||
|---|---|---|---|---|---|
Total patients | 50–59 | 60–69 | 70–79 | > 80 | |
No (%) of patients | 406 | 103 (25.4) | 182 (44.8) | 99 (24.4) | 22 (5.4) |
Median age (years) | 63.3 | 54.7 | 64.9 | 73.5 | 83.3 |
No (%) of patients with DVT | 39 | 3 (2.9) | 16 (8.8) | 16 (16.2) | 4 (18.2) |
Conventional cut-off value | |||||
No (%) of patients below cut-off value | 226 (55.7) | 73 (70.9) | 99 (54.4) | 46 (46.5) | 8 (36.4) |
Age-adjusted cut-off value | |||||
No (%) of patients below cut-off value | 269 | 78 (75.7) | 118 (64.8) | 6 0(60.6) | 12 (54.5) |