Nottingham Hip Fracture Score and Acute Physiology and Chronic Health Evaluation-II: Predicting 30-day mortality in elderly hip fracture

Table 1 Distribution of different variables in studied cases

Statistics (categorical variables)
Name of characteristics (n = 182)	Categories	Numbers	Percentage
Age in year	60-70 years	58	31.9
	71-80 years	80	44.0
	> 80 years	44	24.2
Sex	Female	98	53.8
	Male	84	46.1
Hemoglobin in gm/dL	> 10	95	52.2
	≤ 10	87	47.8
Length of stay in days	< 7	29	15.9
	7-15	132	72.5
	16-30	21	11.5
Malignancy	No	176	96.7
	Yes	6	3.3
Number of comorbidities	< 2	66	36.3
	≥ 2	116	63.7
Admission Mini Mental Test Score	> 6/10	100	54.9
	≤ 6/10	82	45.1
Diagnosis (fracture)	IT left femur	60	33.0
	IT right femur	65	35.7
	Left acetabulum	1	0.5
	NOF left	29	15.9
	NOF right	27	14.8
American Society of Anesthesiologists	II	92	50.5
	III	88	48.4
	IV	2	1.1
H/O organ insufficiency	No	84	46.2
	Yes	98	53.8
Renal failure	No	148	81.3
	Acute renal failure	13	7.1
	Chronic renal failure	21	11.5
Outcome	Survived	166	91.2
	Mortality	16	8.8

IT: Intertrochanteric; NOF: Neck of femur.