Study on risk factors of preoperative deep vein thrombosis in patients with lower limb fractures and construction and validation of risk prediction nomogram model

Table 2 Comparison of general information between two groups of patients (n)

Indicator	n	DVT group n = 66	Non-DVT group n = 79	χ ²	P
Gender				0.509	0.476
Male	70	34	36
Female	75	32	43
Age (years)				2.166	0.141
≤ 60	94	47	47
> 60	51	19	32
BMI (kg/m²)				4.140	0.042
≤ 24	92	36	56
> 24	53	30	23
Fracture site				9.539	0.008
Tibiofibular	27	18	9
femur	102	38	64
hip bone	16	10	6
History of diabetes				17.235	< 0.001
No	100	34	66
Yes	45	32	13
History of hypertension				0.541	0.462
No	92	44	48
Yes	53	22	31
Energy				0.417	0.518
Low	107	47	60
High	38	19	19
PLT (× 10⁹/L)				31.979	< 0.001
≤ 300	89	24	65
> 300	56	42	14
D-D (mg/L)				85.283	< 0.001
≤ 0.5	74	6	68
> 0.5	71	60	11
FIB (g/L)				59.624	< 0.001
≤ 4	75	11	64
> 4	70	55	15
FDP (mg/L)				78.851	< 0.001
≤ 5	76	8	68
> 5	69	58	11

ISSN: 1471-2482