Table 1.

Demographic and clinical features in the whole cohort and the early, mid, and late groups

Feature	All patients (n = 179)	Early group (n = 65)	Mid group (n = 71)	Late group (n = 43)	p
Female	89	29	34	26	.254
Male	90	36	37	17	.254
Age (year)	51.17 ± 17.61	55.65 ± 15.18	51.17 ± 18.09	44.42 ± 18.46	.003
Comorbidity	69	23	32	14	.285
Time from symptom onset to CT scan date (days)	4,22 ± 3.11	4.25 ± 3.17	4.73 ± 3.66	3.34 ± 2.68	.149

Note: The data are presented as count ±SDs. Bold values denote statistical significance at the p < .05 level.

Abbreviation: CT, computed tomography.