Association between Neutrophil Levels on Admission and All-Cause Mortality in Geriatric Patients with Hip Fractures: A Prospective Cohort Study of 2,589 Patients

Table 6

The balance test of PSM (N = 1400).

Variables	Mortality: alive (N = 700)	Mortality: dead (N = 700)	Standardized diff.	value
Age (years)	83.33 ± 4.65	81.89 ± 6.39	0.258	<0.0001^∗
Sex			0.0356	0.5419
Male	251 (35.9)	263 (37.6)
Female	449 (64.1)	437 (62.4)
Hypertension			0.04	0.487
No	335 (47.9)	349 (49.9)
Yes	365 (52.1)	351 (50.1)
CHD			0.0058	0.9571
No	310 (44.3)	312 (44.6)
Yes	390 (55.7)	388 (55.4)
aCCI				<0.0001^∗
2	0 (0)	8 (1.1)	0.1521
3	23 (3.3)	78 (11.1)	0.3073
4	316 (45.1)	301 (43)	0.0432
5	252 (36)	204 (29.1)	0.1467
6	89 (12.7)	81 (11.6)	0.035
7	18 (2.6)	22 (3.1)	0.0343
8	2 (0.3)	6 (0.9)	0.0759
Arrhythmia			0.0298	0.6157
No	455 (65)	445 (63.6)
Yes	245 (35)	255 (36.4)
Ischemic stroke			0.0031	1
No	473 (67.6)	474 (67.7)
Yes	227 (32.4)	226 (32.3)
Cancer			0.0374	0.5754
No	676 (96.6)	671 (95.9)
Yes	24 (3.4)	29 (4.1)
Dementia			0.0805	0.1646
No	667 (95.3)	654 (93.4)
Yes	33 (4.7)	46 (6.6)
COPD			0.0218	0.7598
No	650 (92.9)	646 (92.3)
Yes	50 (7.1)	54 (7.7)
Hepatitis			0.0217	0.7868
No	673 (96.1)	670 (95.7)
Yes	27 (3.9)	30 (4.3)
Treatment strategy				0.082
ORIF	510 (72.9)	544 (77.7)	0.1128
HA	189 (27)	154 (22)	0.1165
THA	1 (0.1)	2 (0.3)	0.0309
Time to admission (h)	97.42 ± 317.35	90.07 ± 222.51	0.0268	0.6157
Time to operation (d)	4.38 ± 2.70	4.54 ± 2.90	0.0591	0.2688
Operation time (mins)	90.69 ± 33.37	91.41 ± 33.05	0.0217	0.6845
Infusion (mL)	1499.36 ± 340.34	1504.63 ± 374.00	0.0147	0.7827

Variables were not successfully matched.