STK39 and essential hypertension: In sex-stratified analyses, STK39 associations were evident in men (hypertension OR, 3.22 [95% CI, 1.42-7.31]; P = .005; systolic BP, +15.88 mm Hg [95% CI, 5.95-25.80]; P = .002) but not in women.<h4>Discussion</h4>In our study cohort, STK39 rs35929607 is associated with essential hypertension and higher systolic BP, with possible sex-specific effects.