Table 4.

Subgroup analysis of the association with admission WBCc and 30-day mortality

	Number of patients	WBCc			P for interaction
		≤ 11 K/uL	P value	> 11 K/uL
Gender					0.676
Male	205	ref	0.001	3.799 (1.695–8.513)
Female	120	ref	0.550	1.392 (0.471–4.113)
Age					0.013
< 69	167	ref	0.005	3.175 (1.412–7.141)
≥ 69	158	ref	0.405	1.609 (0.525–4.934)
Hypertension					0.260
No	133	ref	0.017	3.179 (1.235–8.181)
Yes	192	ref	0.067	2.286 (0.943–5.543)
Diabetes					0.085
No	298	ref	0.013	2.378 (1.204–4.694)
Yes	27	ref	0.119	5.100 (0.658–39.548)
HC					0.529
No	275	ref	0.001	3.261 (1.636–6.500)
Yes	50	ref	0.524	0.485 (0.052–4.487)
Valvular disease					0.246
No	292	ref	0.003	2.843 (1.416–5.709)
Yes	33	ref	0.774	1.275 (0.242–6.704)
CHF					0.119
No	296	ref	0.017	2.348 (1.163–4.741)
Yes	29	ref	0.999	/
AF					0.148
No	269	ref	0.011	2.504 (1.230–5.098)
Yes	56	ref	0.153	2.960 (0.668–13.118)
Liver disease					1.000
No	315	ref	0.002	2.738 (1.429–5.248)
Yes	10	ref	1.000	0.000
Respiratory disease					0.005
No	262	ref	0.024	2.369 (1.119–5.015)
Yes	63	ref	0.043	3.844 (1.046–14.127)
AKI					0.216
No	192	ref	0.004	3.458 (1.473–8.121)
Yes	133	ref	0.256	1.761 (0.663–4.679)
RRT					0.129
No	296	ref	0.008	2.519 (1.269–4.999)
Yes	29	ref	0.270	2.833 (0.445–18.042)

WBCc: White blood cell count; HC: hypercholesterolemia; CHF: congestive heart failure; AF: atrial fibrillation; AKI: acute kidney injury; RRT: renal replacement therapy