Table 2.

Screening tools and test characteristics in IIH patients

Screening tool	IIH patients n = 40	Test characteristics	Sensitivity analysis (OSA = AHI ≥ 15)
Berlin
Low risk	10	Sens = 68%	Sens = 75%
High risk	30	Spec = 19%	Spec = 25%
ESS
Median (IQR)	9 (5–12)
Low risk (no EDS)	19*	Sens = 69%	Sens = 50%
High risk (EDS)	16*	Spec = 74%	Spec = 56%
STOP-BANG
Median (IQR)	4 (2.5–4)
Low risk	9	Sens = 84%	Sens = 92%
Intermediate risk	2	Spec = 38%	Spec = 29%
High risk	29

ESS epworth sleepiness scale, EDS excessive daytime sleepiness, IIH idiopathic intracranial hypertension, AHI apnoea-hypopnoea index, Sens sensitivity, Spec specificity

Screening tools for patients with idiopathic intracranial hypertension that undertook a sleep study with the test characteristics for each tool. Sensitivity analysis performed defining OSA as AHI ≥ 15

*IIH patients n = 35 for Epworth sleeping scale