Table 1: Summary of study population demographics for propensity score matched cohorts pre- and post-guidelines. (M: male, F: female, IC: intracapsular, EC: extracapsular; comparing warfarin cases column relates to the warfarin cases pre- and post-guideline; p < 0.05 is statistically significant.)

Pre-GuidelinePost-guidelineP-Value
CaseMatchedP-valueCaseMatchedP-valueComparing warfarin cases

Total4646/7864848/957

Age yearsMean80.580.50.9781.281.30.970.641
(±7.6)(+/- 7.4)(+/- 8.0)(+/- 8.3)
Range61-9361-9362-10062-104

Sex (%)M13 (28.3)14 (30.4)0.8916 (33.3)17 (35.4)0.920.743
F33 (71.7)32 (69.6)0.9332 (66.7)31 (64.6)0.90.901

NHFS9.28.90.867.29.80.040.006
(+/- 3.7)(+/- 7.6)
(+/- 6.5)(+/- 5.2)

Fracture Type (%)IC26 (57)26 (57)1.028 (58)28 (58)1.00.960
EC20 (43)20 (43)1.020 (42)20 (42)1.01.0

INR on AdmissionMean2.6 (+/-0.9)2.5 (+/- 1.0)0.87
Range1.2-5.11.4-4.9