Dyslipidaemia for patients with low-energy femoral neck fractures after the treatment of cancellous screws: a retrospective study with a 3-year minimum follow-up

Table 1 Patient demographics between groups

Variable	AVNFH (n = 135)	Control (n = 142)	P - value
Age (years)	70.6 ± 11.71	68.4 ± 10.39	0.11^*a
Sex (M:F)	63:72	68:74	0.84^*b
ASA scale, No.			0.99^*c
I	26	29
II	37	41
III	53	48
IV	19	24
V	0	0
Laterality (L/R)	84/51	88/54	0.97^*b
BMI (kg/m²)	24.6 ± 1.60	24.3 ± 1.74	0.14^*a
BMD	2.0 ± 0.41	2.1 ± 0.54	0.11^*a
Garden classification (No.)	84		0.97^*c
I	17	20
II	31	37
III	44	45
IV	43	40

^*Not statistically significant. ^aAnalysed using an Independent-Samples t-test; ^bAnalysed using the Chi-square test; ^cAnalysed using the Mann-Whitney test. AVNFH Avascular necrosis of the femoral head, ASA American Society of Anesthesiologists, BMI Body mass index, BMD Bone mineral density