Neuroprotective cytokine stem cell factor (SCF) concentrations were 50% lower in women with eclampsia (fold change 0.50, 95% CI 0.31–0.81), 57% lower in women with pre-eclampsia with end-organ complications (fold change 0.43, 95% CI 0.28–0.67), and 52% lower in women with pre-eclampsia without end-organ complications (fold change 0.48, 95% CI 0.31–0.81) compared to normotensive controls (Fig. 3g, Table 3). Here, KITLG is linked to complication.