From: Correlation between the prevalence of herniation pits and the alpha angle of the hip: computed tomography evaluation in healthy Chinese adults
Gender
Age group (years)
Total
16–20
21–30
31–40
41–50
51–60
61–70
>71
M
25
75
72
82
65
33
41
393
F
20
32
48
55
21
46
277
45
107
120
137
54
87
670