. Author manuscript; available in PMC: 2023 Sep 18.

Published in final edited form as: J Orthop Trauma. 2021 Oct 1;35(10):529–534. doi: 10.1097/BOT.0000000000002069

Table 1:

Patient Demographic and Neck-Shaft Angle Characteristics

Patient Demographics and Neck-Shaft Angle Characteristics
Variable		N*
Total Number of Patients		203 patients (406 femora)
Sex	Male	53
Sex	Female	150
NSA	Cohort	133.07° ± 5.13
(mean ± SD)
	Cohort L v R NSA	−0.27° (95% CI [−1.27, 0.73]) p=0.59
Male NSA		131.56° ± 4.74
Female NSA		133.61° ± 5.17
(mean ± SD)
	Male v Female NSA	2.04° (95% CI [0.92, 3.17]) p=0.01
	Male L v R NSA	0.19° (95% CI [−0.74, 1.12]) p=0.68
	Female L v R NSA	0.3° (95% CI [−0.15, 0.75] p=0.18
Inter-patient Assessment
Pearson Correlation Coefficient (r)	Cohort	r=0.84
(between L and R femora)	Male	r=0.75
	Female	r=0.86
Coefficient of Determination (r²)	Cohort	r²=0.70 (p<0.01)
	Male	r²=0.56 (p<0.01)
	Female	r²=0.74 (p<0.01)
Intra-patient Assessment
Coefficient of Variation (CV)	Intra-patient CV	84.3%

NSA = Neck-Shaft Angle, L = left, R = Right, SD = Standard Deviation, CI = Confidence Interval