TABLE 3.

Aged‐related change in the neck‐shaft angle

Age	Total (Mean ± SD)	Male (Mean ± SD)	Female (Mean ± SD)	F	p value
m 4	159.08 ± 5.19	159.42 ± 5.56	158.75 ± 4.85	0.542	0.589
m 7	157.75 ± 5.29	156.86 ± 5.83	159.16 ± 4.03	−1.761	0.084
m 10	154.78 ± 5.16	154.68 ± 6.11	154.93 ± 3.40	−0.155	0.877
1 y	149.91 ± 5.55	150.56 ± 5.38	149.41 ± 5.75	0.637	0.528
2 y	144.18 ± 5.55	145.08 ± 5.58	143.57 ± 5.51	1.192	0.237
3 y	144.01 ± 5.22	144.15 ± 5.43	143.87 ± 5.09	0.207	0.837
4 y	143.89 ± 5.52	146.25 ± 5.68	142.38 ± 4.96	2.304	0.027*
5 y	142.23 ± 6.04	143.48 ± 4.51	140.60 ± 7.40	1.536	0.135
6 y	141.55 ± 5.13	142.36 ± 4.74	139.58 ± 5.71	1.609	0.116
7 y	141.26 ± 5.12	141.88 ± 5.64	139.50 ± 2.83	1.436	0.165
8 y	139.68 ± 4.65	140.50 ± 4.34	137.79 ± 4.91	2.063	0.044*
9 y	139.218 ± 3.92	139.56 ± 3.67	138.23 ± 4.57	1.127	0.265
10 y	138.88 ± 4.99	139.68 ± 4.85	137.22 ± 5.01	1.650	0.106
11 y	139.52 ± 5.25	140.27 ± 5.13	137.32 ± 5.15	1.854	0.069
12 y	136.05 ± 5.14	137.12 ± 5.17	133.63 ± 4.27	2.573	0.013*
13 y	135.10 ± 5.07	135.81 ± 5.72	134.03 ± 3.77	1.129	0.266
14 y	132.78 ± 6.09	134.31 ± 6.06	131.58 ± 5.97	1.358	0.183
15 y	129.13 ± 3.31	128.70 ± 3.13	129.83 ± 4.19	−0.441	0.675
16 y	133.21 ± 5.28	131.54 ± 4.84	134.38 ± 5.40	−1.454	0.157
17 y	133.72 ± 3.37	134.14 ± 3.02	133.45 ± 3.70	0.411	0.686
18 y	129.40 ± 4.78	131.20 ± 3.63	128.50 ± 5.19	1.034	0.320
19 y	131.23 ± 4.48	132 ± 5.54	130.33 ± 3.08	0.653	0.527

Note: * P<0.05; “F and p value” for value and significance of differences in neck shaft angle between genders.