The content of CD8+GM-CSF+ cells was significantly increased in both hypertension and preeclampsia compared with the control (29.97; 95% CI 28.77–31.01 and 28.58; 95% CI 25.04–31.9 vs. 7.33; 95% CI 6.74–7.83), with differences between hypertension and preeclampsia No overlapping 95% CI was detected. Here, CD8A is linked to preeclampsia.