Table 1. Demographic and clinical characteristics of 343 patients with aSAH on admission.

Category	Number	Proportion (%)
Gender
male	133	38.8
female	210	61.2
Age group
≥53 years	151	44.0
< 53 years	192	56.0
Ethnicity
Han	191	55.7
Uyghur	92	26.8
Others	60	17.5
History of cigarette smoking
Current or former smokers	64	18.7
Non-smokers	279	81.3
History of hypertension
Yes	149	43.7
No	194	56.3
Number of aneurysms
1	289	84.3
≥2	54	15.7
Aneurysm size
≥ 10 mm	166	48.4
< 10 mm	177	51.6
Modified Fisher grade
0–2	194	56.6
3–4	149	43.4
Hunt-Hess grade
1–3	226	65.9
4–5	117	34.1
Leukocyte count
≥11×109/L	168	40.0
< 11×109/L	137	49.0
Missing data	38	11.0
Serum glucose level
≥7.0 mmol/L	156	45.5
<7.0 mmol/L	151	44.0
Missing data	36	10.5
Triglyceride level
≥2.26 mmol/L	31	9.0
< 2.26 mmol/L	257	74.9
Missing data	55	16.1
Aneurysm treatment
Clipping	216	63.0
Coiling	107	31.2
Both	20	5.8