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. 2025 Apr 1;25:156. doi: 10.1186/s12911-025-02983-z

Table 3.

Patient characteristics of the validation set for the short-term and long-term predictions

Patient Characteristics Short-term Long-term
All (n = 1318) Alpha (n = 6) Delta (n = 40) Omicron (n = 35) (n = 149)
Age (median[range]) 69 [1–104] 58.5 [50–87] 60.5 [1–93] 77 [26–95] 63 [26–87]
Age category (n (%))
 <40 years 84 (6.37) 0 (0) 5 (12.5) 3 (8.57) 11 (7.38)
 40–50 years 107 (8.11) 0 (0) 10 (25.0) 1 (2.86) 16 (10.7)
 50–60 years 202 (15.3) 3 (50.0) 4 (10.0) 1 (2.86) 33 (22.1)
 60–70 years 298 (22.6) 1 (16.7) 5 (12.5) 5 (14.3) 46 (30.9)
 70–80 years 297 (22.5) 0 (0) 8 (20.0) 10 (28.6) 33 (22.1)
 >80 years 330 (25.1) 2 (33.3) 8 (20.0) 15 (42.9) 10 (6.71)
Sex (n (%))
 male 823 (62.4) 1 (16.7) 17 (42.5) 25 (71.4) 98 (65.8)
 female 495 (37.6) 5 (83.3) 23 (57.5) 10 (28.6) 51 (34.2)
Short-term severity (n (%))
 severe 432 (32.8) 0 (0) 3 (7.50) 6 (17.1) 119 (79.9)
 not severe 886 (67.2) 6 (100) 37 (92.5) 29 (82.9) 30 (20.1)
Long-term symptoms (n (%))
 yes 102 (31.5)
 no 47 (68.5)

n: number of patients