Table 1.

Heterogeneity Tests and MR-Egger Intercept of Short Sleep Duration and Frequent Insomnia Symptoms Causally Linked to Ischemic Stroke and Its Subtypes

Exposure and Outcome	Cochran’s Q	p valuea	Intercept	p valueb
Short sleep duration
Large artery stroke	26.47	0.438	−0.011	0.618
Small vessel stroke	24.19	0.508	0.015	0.480
Cardioembolic stroke	32.20	0.152	−0.008	0.705
Any ischemic stroke	18.15	0.836	−0.002	0.813
Frequent insomnia symptoms
Large artery stroke	76.02	0.032	−4.74×10−3	0.692
Small vessel stroke	68.84	0.099	0.004	0.736
Cardioembolic stroke	52.84	0.558	−2.60×10−4	0.974
Any ischemic stroke	74.34	0.042	0.004	0.445

Notes: ^ap value for heterogeneity tests; ^bp value for MR-Egger intercept.

Abbreviation: MR, Mendelian randomization.