Association between serum calcium levels and prognosis, hematoma volume, and onset of cerebral hemorrhage in patients undergoing hemodialysis

Table 3 Univariate and multivariate logistic regression analyses for prognosis

	Univariate			Model 1			Model 2
	OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value
Age per year	1.00	0.96–1.04	0.9	1.00	0.96–1.05	0.9
Male vs. female	0.76	0.31–1.84	0.5	0.88	0.34–2.32	0.8
Dialysis vintage	1.00	0.95–1.07	0.8
History of diabetes	1.33	0.56–3.14	0.5
Ischemic heart disease	5.33	1.75–16.2	0.002
Heart valve repair or replacement	12.0	1.34–108	0.03				32.4	2.61–403	0.007
Antiplatelet use	3.26	1.34–7.93	0.008				4.30	1.52–12.2	0.006
Warfarin use	4.13	1.23–13.9	0.02
sBP pre-HD proximate the onset per 10 mmHg	1.04	0.92–1.18	0.5
Corrected serum calcium per mg/dL	2.38	1.39–4.09	< 0.001	2.37	1.42–4.23	< 0.001	2.91	1.58–5.35	< 0.001
Phosphate per mg/dL	1.21	0.93–1.58	0.2
iPTH per 10 pg/mL	1.01	0.97–1.05	0.7
Serum albumin per g/dL	0.46	0.20–1.05	0.06

CI confidential interval, OR odds ratio
Model 1: including age, sex, and corrected serum calcium
Model 2: including repair and/or replacement, antiplatelet use, and corrected serum calcium. Valve repair and/or replacement and antiplatelet use were selected by the stepwise method (mixed method)

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