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Table 3 Logistic regression for the outcomes

From: The clinical relevance of plasma potassium abnormalities on admission in trauma patients: a retrospective observational study

Potassium level on admission (mEq/L) <3.0 p value 3.0–<3.5 p value 3.5–<4.0 4.0–<4.5 p value 4.5–<5.0 p value ≥5.0 p value
Unadjusted OR (95 % CI)
 LSI for bleeding 0.76 (0.31–1.85) 0.545 0.66 (0.40–1.08) 0.099 1 [ref] 1.16 (0.64–2.11) 0.627 1.97 (0.61–6.31) 0.254 4.20 (0.91–19.40) 0.067
 Craniotomy 5.59 (2.36–13.20) <0.001 1.68 (0.87–3.27) 0.123 1 [ref] 1.10 (0.44–2.79) 0.836 3.36 (0.84–13.40) 0.087 1.86 (0.21–16.50) 0.575
 In-hospital mortality 3.12 (1.16–8.38) 0.024 0.57 (0.23–1.38) 0.210 1 [ref] 1.90 (0.81–4.48) 0.142 3.88 (0.96–15.70) 0.058 5.17 (0.92–29.10) 0.062
Adjusted OR (95 % CI)
 LSI for bleeding 0.48 (0.18–1.29) 0.145 0.69 (0.41–1.18) 0.178 1 [ref] 1.05 (0.55–2.00) 0.893 1.45 (0.36–5.82) 0.604 2.79 (0.54–14.40) 0.220
 Craniotomy 5.25 (2.06–13.40) <0.001 2.03 (1.01–4.07) 0.048 1 [ref] 1.02 (0.39–2.66) 0.974 2.93 (0.62–13.90) 0.176 1.36 (0.14–13.00) 0.788
 In-hospital mortality 3.03 (0.89–10.30) 0.077 0.79 (0.30–2.09) 0.630 1 [ref] 1.57 (0.60–4.14) 0.359 1.20 (0.17–8.79) 0.854 3.17 (0.40–25.20) 0.276
  1. OR odds ratio, CI confidence interval, LSI life-saving intervention, ref reference