Table 1.

Demographics of patients with intertrochanteric fractures treated by PFNA and CPH in the elderly (n)

Group	Gender (M/F)	Age($\overline{x}$ ±s,year)	Course of disease($\overline{x}$ ±s,month)	ASA grade		Evans-Jensen classification
				III	IV	III	IV	V
PFNA group	36/25	83.5 ± 4.8	27.9 ± 5.2	42	19	27	22	12
CPH group	27/20	83.8 ± 6.4	28.2 ± 6.9	30	17	17	19	11
χ2/t value		1.949	1.834	0.301	0.150	0.733	0.516	0.524
P value		0.054	0.069	0.583	0.699	0.693	0.473	0.469

Notes: PFNA stands for proximal femoral nail anti-rotation, CPH stands for cementless bipolar hemiarthroplasty, ASA stands for American Society of Anesthesiologists