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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Curr Orthop Pract. 2016 Nov-Dec;27(6):604–613. doi: 10.1097/BCO.0000000000000424

Table 2.

Descriptive summary of patients with unstable fractures (AO 2.2–2.3)

AO class 2.2–2.3 (N=67) CMN (N=52) SHS (N=15) P Test
Age Mean (SD) 71 (18) 75 (9) 0.904 Wilcoxon
Range (27, 101) (55, 91)
Median (IQR) 76 (57, 85) 75 (73, 80)
Sex F 29 (55.8%) 8 (53.3%) 0.870 Chi-square
M 23 (44.2%) 7 (46.7%)
Year of service Mean (SD) 2006 (3) 2005 (3) 0.139 Wilcoxon
Range (2000, 2012) (2001, 2012)
Median (IQR) 2007 (2004, 2010) 2005 (2002, 2007)
Follow up months Mean (SD) 26.4 (37.2) 16.3 (25.5) 0.269 Wilcoxon
Range (0.1, 142.0) (0.4, 81.9)
Median (IQR) 7.7 (3.1, 33.7) 4.7 (0.9, 21.0)
Time of service to
mortality (months)
Mean (SD) 53.7 (43.8) 43.8 (43.6) 0.347 Wilcoxon
Range (0.1, 155.7) (0.6, 134.9)
Median (IQR) 43.6 (19.6, 81.5) 23.0 (1.7, 75.4)
Iezzoni comorbidities 0 26(51.0%) 8(53.3%) 1.000 Fisher
1 17(33.3%) 5(33.3%)
2 5(9.8%) 2(13.3%)
3 3(5.9%) 0(0%)

# Missing: Iezzoni_comorbidities=1; CMN, cephalomedullary nail; IQR, interquartile range; SD, standard deviation; SHS, sliding hip screw