Table 2.
The ORs of platelet indices for mortality after adjustment
| Platelet indices | OR | 95% CI | P for OR | P of Hosmer-Lemeshow goodness of fit |
|---|---|---|---|---|
| PLT, ×1012/L | 0.683 | |||
| 100–300 (reference) | 1 | – | – | |
| <100 | 1.96 | 1.21–2.32 | 0.011 | |
| >300 | 0.86 | 0.56–3.41 | 0.998 | |
| PCT | 0.559 | |||
| 0.108–0.282 (reference) | 1 | |||
| <0.108 | 1.97 | 1.60–2.09 | 0.002 | |
| >0.282 | 0.81 | 0.62–3.21 | 0.162 | |
| MPV, fL | 0.721 | |||
| 7.7–11.3 (reference) | 1 | – | – | |
| <7.7 | 1.21 | 0.13–10.21 | 0.897 | |
| >11.3 | 1.15 | 1.02–2.36 | 0.023 | |
| PDW, % | 0.530 | |||
| 10–17 (reference) | 1 | – | – | |
| <10 | 1.70 | 0.34–3.37 | 0.511 | |
| >17 | 2.38 | 1.14–4.99 | 0.009 |
Platelet indices were divided into three tertiles of lower than low limit, higher than up limit and normal range as presented in table. The normal range was considered as reference. ORs were adjusted for variables including gender, age, APACHE II, SOFA scores, mechanical ventilation, blood lactic acid, serum creatinine. PLT: Platelet; PCT: Plateletcrit; MPV: Mean platelet volume; PDW: Platelet distribution width percentage; ORs: Odds ratios; CI: Confidence interval; APACHE II: Acute Physiology and Chronic Health Evaluation II; SOFA: Sequential organ failure assessment.