Characteristics of participants and results of morphological features of olfactory nerve system.

Numerical data are presented as mean ± standard deviation (minimum-maximum)*, categorical data as numbers (n) and percent (%). The chi-square test was used for gender and independent T-test was used for numerical variables. Diagnosis of IIH=time between onset of first symptoms and enrolment in the study. Highest and last ICP=Highest and last intracranial pressure in the medical history of patients. CSF=Cerebrospinal fluid. Medication = Current intake of acetazolamide, topiramate or furosemide to treat IIH. OBV=Olfactory bulb volume. OS=Olfactory sulcus. *Numerical data of diagnosis of IIH are presented as median (range: minimum-maximum) because the data were not normally distributed.

计量资料以均值±标准差（最小值-最大值）*表示，分类资料以例数（n）及百分率（%）表示。性别资料采用卡方检验，计量变量采用独立样本t检验。
IIH确诊时长：即首次症状发作至本研究入组的时间间隔。
最高与末次颅内压（ICP，Intracranial Pressure）：指患者病史中记录的最高及末次颅内压值。
脑脊液（CSF，Cerebrospinal Fluid）。
用药情况：指当前服用乙酰唑胺、托吡酯或呋塞米治疗IIH的用药状态。
嗅球体积（OBV，Olfactory Bulb Volume）。
嗅沟（OS，Olfactory Sulcus）。
*因IIH确诊时长数据不符合正态分布，故以中位数（范围：最小值-最大值）表示。