From: Cross-Sectional Survey of Childhood Acetabular Development in Japan
Total | Boys | Girls | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age (years) | Avg | SD | Min | Max | Avg | SD | Min | Max | Avg | SD | Min | Max | |||||||||
3 | 17 | ± | 3 | (14 | – | 23) | 18 | ± | 3 | (14 | – | 21) | 19 | ± | 3 | (16 | – | 23) | |||
4 | 19 | ± | 4 | (10 | – | 29) | 17 | ± | 4 | (10 | – | 24) | 20 | ± | 3 | (13 | – | 29) | |||
5 | 21 | ± | 3 | (16 | – | 27) | 20 | ± | 3 | (16 | – | 24) | 21 | ± | 3 | (16 | – | 27) | |||
6 | 19 | ± | 4 | (8 | – | 27) | 18 | ± | 4 | (8 | – | 25) | 20 | ± | 4 | (11 | – | 27) | |||
7 | 19 | ± | 4 | (14 | – | 32) | 17 | ± | 2 | (14 | – | 22) | 21 | ± | 4 | (17 | – | 32) | |||
8 | 17 | ± | 2 | (12 | – | 21) | 16 | ± | 1 | (14 | – | 18) | 18 | ± | 3 | (12 | – | 21) | |||
9 | 18 | ± | 4 | (11 | – | 27) | 16 | ± | 3 | (11 | – | 22) | 19 | ± | 5 | (12 | – | 27) | |||
All | 19 | ± | 4 | (8 | – | 32) | 18 | ± | 3 | (8 | – | 25) | 20 | ± | 4 | (11 | – | 32) |
From: Cross-Sectional Survey of Childhood Acetabular Development in Japan
Total | Boys | Girls | ||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age (years) | Avg | SD | Min | Max | Avg | SD | Min | Max | Avg | SD | Min | Max | ||||||||||||
3 | 23 | ± | 4 | ° | (17 | – | 30) | 23 | ± | 4 | ° | (17 | – | 29) | 23 | ± | 4 | ° | (17 | – | 30) | |||
4 | 23 | ± | 4 | ° | (16 | – | 36) | 24 | ± | 4 | ° | (17 | – | 34) | 23 | ± | 5 | ° | (16 | – | 36) | |||
5 | 23 | ± | 5 | ° | (12 | – | 32) | 21 | ± | 4 | ° | (12 | – | 28) | 24 | ± | 5 | ° | (15 | – | 32) | |||
6 | 24 | ± | 5 | ° | (17 | – | 38) | 24 | ± | 5 | ° | (17 | – | 35) | 24 | ± | 5 | ° | (18 | – | 38) | |||
7 | 26 | ± | 5 | ° | (11 | – | 34) | 27 | ± | 4 | ° | (19 | – | 33) | 25 | ± | 6 | ° | (11 | – | 34) | |||
8 | 27 | ± | 4 | ° | (20 | – | 34) | 27 | ± | 4 | ° | (21 | – | 34) | 28 | ± | 4 | ° | (20 | – | 33) | |||
9 | 25 | ± | 6 | ° | (12 | – | 35) | 26 | ± | 5 | ° | (15 | – | 35) | 24 | ± | 8 | ° | (12 | – | 33) | |||
All | 24 | ± | 5 | ° | (11 | – | 38) | 25 | ± | 5 | ° | (12 | – | 35) | 24 | ± | 5 | ° | (11 | – | 38) |
From: Cross-Sectional Survey of Childhood Acetabular Development in Japan
Total | Boys | Girls | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age (years) | Avg | SD | Min | Max | Avg | SD | Min | Max | Avg | SD | Min | Max | |||||||||
3 | 83 | ± | 5 | (75 | – | 91) | 86 | ± | 5 | (76 | – | 91) | 82 | ± | 4 | (75 | – | 88) | |||
4 | 84 | ± | 6 | (71 | – | 96) | 86 | ± | 5 | (76 | – | 93) | 83 | ± | 7 | (71 | – | 96) | |||
5 | 79 | ± | 8 | (65 | – | 94) | 78 | ± | 6 | (67 | – | 89) | 81 | ± | 8 | (65 | – | 94) | |||
6 | 82 | ± | 6 | (69 | – | 95) | 83 | ± | 5 | (75 | – | 95) | 80 | ± | 6 | (69 | – | 93) | |||
7 | 80 | ± | 7 | (66 | – | 94) | 84 | ± | 6 | (76 | – | 94) | 77 | ± | 7 | (66 | – | 86) | |||
8 | 82 | ± | 5 | (74 | – | 91) | 83 | ± | 4 | (76 | – | 89) | 80 | ± | 5 | (74 | – | 91) | |||
9 | 81 | ± | 8 | (63 | – | 92) | 82 | ± | 6 | (68 | – | 89) | 81 | ± | 10 | (63 | – | 92) | |||
All | 82 | ± | 6 | (63 | – | 96) | 83 | ± | 6 | (67 | – | 95) | 81 | ± | 7 | (63 | – | 96) |
From: Cross-Sectional Survey of Childhood Acetabular Development in Japan
AI | CEA | AHI | ||
---|---|---|---|---|
Boys | Coefficient of correlation | −0.205 | 0.306 | −0.118 |
p-value | 0.035 | 0.001* | 0.229 | |
Girls | Coefficient of correlation | −0.003 | 0.150 | −0.192 |
p-value | 0.972 | 0.128 | 0.050 |
From: Cross-Sectional Survey of Childhood Acetabular Development in Japan
Measurement | Nation | Subjects | Age (years) | Result | ||
---|---|---|---|---|---|---|
CEA | <15° | 15°–19° | 20°–40° | |||
Sweden(13) | Boys and girls | 6–13 | 0% | 2% | 98% | |
Japan* | Girls | 6–9 | 4% | 13% | 83% | |
AI | ≥24° | 20°–23° | <19° | |||
Germany(11) | Girls | 5–7 | 2% | 16% | 82% | |
Japan* | Girls | 5–7 | 23% | 35% | 42% |