Table 2.

Correlation of serum albumin levels in patients with spontaneous subarachnoid hemorrhage.

Items	All (n = 229)	Low serum albumin (n = 150)	Normal serum albumin (n = 79)	Test method	Test statistic	p-Values
Intubation	72 (31.6%)	65 (43.6%)	7 (8.9%)	Chi square	28.88	<0.001*
Pneumonia	80 (35.1%)	69 (46.3%)	11 (13.9%)	Chi square	23.77	<0.001*
Cerebral vasospasm	102 (44.5%)	76 (50.7%)	26 (32.9%)	Chi square	6.60	0.010*
Delayed cerebra infarction	40 (17.5%)	27 (18.0%)	13 (16.5%)	Chi square	0.09	0.770
Rebleeding	18 (7.9%)	15 (10.1%)	3 (3.8%)	Chi square	2.79	0.095
Length of hospital stay (days, median)	10.19 ± 10.42	13.05 ± 11.34	4.76 ± 5.07	Kruskal	53.54	0.001*
Length of ICU stay (days)	9.54 ± 10.36	12.15 ± 11.44	4.60 ± 5.11	Kruskal	42.77	0.001*
Poor outcome	46 (20.1%)	45 (30.0%)	2 (2.5%)	Chi square	23.94	0.001*
Discharge outcome				Chi square	32.26	0.001*
Death	4 (1.7%)	4 (2.7%)	0 (0%)	Chi square	2.14	0.350
Vegetative stage	10 (4.4%)	9 (6.0%)	1 (1.3%)	Chi square	2.78	0.185
Severe disability	32 (14.0%)	32 (21.3%)	1 (1.3%)	Chi square	16.90	0.001*
Mild disability	39 (17.0%)	30 (20.0%)	9 (11.4%)	Chi square	2.71	0.100
Recovery	144 (62.9%)	75 (50.0%)	68 (86.1%)	Chi square	28.72	0.001*
6-month follow-up outcome				Chi square	10.38	0.040*
Death	25 (10.9%)	15 (10.0%)	5 (6.3%)	Chi square	1.17	0.280
Vegetative stage	2 (0.9%)	2 (1.3%)	0 (0%)	Fisher	-	0.546
Severe disability	10 (4.4%)	10 (6.7%)	0 (0%)	Chi square	5.51	0.045*
Mild disability	22 (9.6%)	14 (9.3%)	13 (16.5%)	Chi square	2.52	0.112
Recovery	156 (68.1%)	95 (63.3%)	61 (77.2%)	Chi square	4.59	0.032*

Measurement data are expressed as means ± standard deviation (SD) and counting data are expressed as a percentage.

^*p ≤ 0.05: low serum albumin group vs. normal serum albumin group. ICU, intensive care unit.