Table 2 Baseline characteristics of the formed age- and sex-dependent ONFH-subgroups
Subgroup “Age” | ONFH, mono-/bilateral (count) | Sex, male/female (count) | Age, years (mean ± SD) | Treatment, ACD/mACD (count) | Follow-up, months (mean ± SD) |
|---|---|---|---|---|---|
< 30 years (N = 9) | 8/1 | 6/3 | n.a. | 5/4 | 33.41 ± 24.61 |
≥ 30/< 40 years (N = 16) | 11/5 | 10/6 | n.a. | 7/9 | 39.18 ± 26.26 |
≥ 40/< 50 years (N = 27) | 23/4 | 25/2 | n.a. | 15/12 | 34.49 ± 24.11 |
≥ 50 years (N = 34) | 29/5 | 25/9 | n.a. | 19/15 | 27.44 ± 24.90 |
Subgroup “Sex” | |||||
Male (N = 66) | 52/14 | n.a. | 47.34 ± 11.74 | 33/33 | 29.67 ± 23.15 |
Female (N = 20) | 19/1 | n.a. | 45.16 ± 13.65 | 13/7 | 41.68 ± 28.49 |