Serum calcium, albumin, globulin and matrix metalloproteinase-9 levels in acute cerebral infarction patients

Table 1 Univariate analysis of hemorrhagic transformation after intravenous thrombolysis in patients with acute cerebral infarction

Measure	Observation group, n = 40	Control group, n = 460	t/χ2 value	P value
Sex (Male/Female)	23/17	287/173	1.230	0.154
Age in yr (mean ± SD)	76.21 ± 10.33	75.87 ± 10.08	0.922	0.346
History of hypertension (Yes/No)	25/15	249/211	2.221	0.098
History of diabetes (Yes/No)	13/27	142/318	1.255	0.123
History of atrial fibrillation (Yes/No)	14/26	115/345	1.873	0.101
History of cerebrovascular diseases (Yes/No)	11/29	83/377	0.812	0.401
History of smoking (Yes/No)	21/19	253/207	2.437	0.086
History of alcohol consumption (Yes/No)	18/22	193/267	1.167	0.172
NHISS score (mean ± SD)	15.21 ± 2.18	11.42 ± 2.65	17.321	0.001

NHISS: National Institutes of Health Stroke scale; SD: Standard deviation.