Table 4.

Multivariate logistic regression analysis of risk factors associated with 120-day mortality

	Day 1			Day 3			Day 7
Variables	β	OR (95% CI)	P	β	OR (95% CI)	P	β	OR (95% CI)	P
Age, years	0.043	1.044 (1.024–1.064)	<0.001	0.038	1.038 (1.019–1.059)	<0.001	0.046	1.047 (1.025–1.069)	<0.001
ABSI score	0.283	1.328 (1.154–1.528)	<0.001	0.289	1.335 (1.151–1.548)	<0.001	0.289	1.335 (1.148–1.554)	<0.001
Inhalation injury, %	0.594	1.812 (0.958–3.428)	0.068	0.651	1.918 (0.986–3.733)	0.055	0.538	1.713 (0.869–3.377)	ns
Mechanical ventilation, %	1.077	2.937 (1.531–5.634)	0.001	0.887	2.429 (1.233–4.786)	0.010	0.914	2.495 (1.270–4.901)	0.008
Sepsis, %	1.129	3.093 (1.512–6.327)	0.002	1.062	2.893 (1.387–6.034)	0.005	0.982	2.671 (1.295–5.506)	0.008
WBC, ×109/L	−0.107	0.899 (0.571–1.416)	ns	–0.564	0.569 (0.244–1.328)	ns	−0.034	0.967 (0.719–1.301)	ns
Neutrophils, ×109/L	0.157	1.170 (0.720–1.901)	ns	0.623	1.864 (0.761–4.562)	ns	0.104	1.110 (0.807–1.525)	ns
Lymphocytes, ×109/L	0.131	1.140 (0.677–1.922)	ns	0.528	1.695 (0.547–5.249)	ns	0.034	1.035 (0.629–1.703)	ns
Haemoglobin, g/L	−0.001	0.999 (0.989–1.009)	ns	0.008	1.008 (0.995–1.021)	ns	−0.019	0.981 (0.966–0.996)	0.016
MPV, %	0.088	1.092 (0.881–1.352)	ns	–0.066	0.936 (0.748–1.170)	ns	0.218	1.244 (0.992–1.559)	0.058
PLT, ×109/L	−0.002	0.998 (0.994–1.003)	ns	–0.005	0.995 (0.987–1.003)	ns	0.000	1.000 (0.996–1.004)	ns
PDW, %	0.020	1.020 (0.914–1.139)	ns	0.118	1.125 (1.010–1.254)	0.033	0.138	1.148 (1.034–1.274)	0.009
PPR, ratio	0.647	1.910 (0.156–23.371)	ns	2.048	7.754 (0.978–61.446)	0.052	2.815	16.690 (1.050–265.194)	0.046

P-values were shown for variables with P < 0.10. ABSI score, abbreviated burn severity index score; CI, confidence intervals; MPV, mean platelet volume; ns, no significance; OR, odd ratio; PDW, platelet distribution width; PLT, platelet count; PPR, PDW-to-PLT ratio; WBC, white blood cell.