Table 3 Relative risk (95% confidence interval) of 30-day mortality by platelet count (N = 752)
From: Prognostic significance of early platelet dynamics in Staphylococcus aureus bacteremia
Platelet count on Day 4 | Total N | Mortality % | Relative risk (95% CI) | p-value |
|---|---|---|---|---|
> 150 | 504 | 0.2 | Reference | N/A |
131–150 | 39 | 2.6 | 3.45 (1.20–9.88) | 0.02 |
111–130 | 41 | 2.4 | 1.64 (0.39–6.92) | 0.50 |
91–110 | 42 | 2.4 | 5.60 (2.42–12.97) | < 0.0001 |
71–90 | 47 | 2.1 | 8.58 (4.27–17.24) | < 0.0001 |
51–70 | 41 | 2.4 | 12.29 (6.48–23.34) | < 0.0001 |
< = 50 | 38 | 2.6 | 8.84 (4.27–18.33) | < 0.0001 |
Per 20-unit of platelet count | 1.26 (1.18–1.35) | < 0.0001 |