Hans van den Heuvel

5 Healthcare consumption Table 3 demonstrates healthcare consumption during pregnancy. The number of antenatal visits from the first visit to delivery was significantly lower in the SAFE@HOME group as compared to the control group (mean 13.7 [4.0] vs 16.0 [4.1], p <0.001). The total number of ultrasound assessments was also significantly lower in the SAFE@HOME group (mean 6.3 [2.7] vs 7.4 [2.9], p=0.005). These significant reductions were primarily observed between 34 weeks of gestation and delivery, which corresponds to the proposed visit schedule (Figure 1 and Table 4). In the SAFE@HOME group, observational admissions for hypertension or diagnosis/ exclusion of suspected preeclampsia were significantly lower compared to the control group (2.9% vs 13.5% of participants, p=0.004, Table 2). Overall, no significant difference was found in the number of patients who needed an antenatal admission for any other obstetric indication (i.e. fetal monitoring, antepartum haemorrhage or intravenous treatment for severe hypertension or preeclampsia): 31.1% in SAFE@HOME vs 39.1% in control group, p=0.20. The mean number of blood tests for evaluation of hypertension/preeclampsia did not differ between groups. Table 3. Results of healthcare consumption SAFE@HOME n = 103 Control n = 133 p-value Total number of visits mean (SD) 13.7 (4.0) 16,0 (4.1) <0,001 GA 0-26 weeks “ 5.9 (2.5) 6.2 (2.4) 0.23 GA 26-34 weeks “ 4.1 (2.0) 4.5 (2.0) 0.16 GA 34- delivery “ 3.8 (2.0) 5.3 (2.4) <0,001 Total number of ultrasound assessments mean (SD) 6.3 (2.7) 7.4 (2.9) 0.005 GA 0-26 weeks “ 2.8 (1.5) 3.5 (1.5) <0.001 GA 26-34 weeks “ 2.7 (1.6) 2.6 (1.7) 0.58 GA 34- delivery “ 0.9 (0.9) 1.1 (1.2) 0.004 ≥ 1 antenatal admissions (for any obstetric indication) n (%) 32 (31.1) 52 (39.1) 0.20 Duration (days) median (IQR) 4.5 (2-11.5) 6 (2-19) 0.50 ≥ 1 antenatal admissions for observation of hypertension or suspected preeclampsia n (%) 3 (2.9) 18 (13.5) 0.004 Duration (days) median (IQR) 2 (2-2) 2.75 (2-4) 0.10 Number of blood tests for hypertension evaluation mean (SD) 2.9 (3.7) 2.5 (3.6) 0.38 Legend: GA, gestational age; PE, preeclampsia SAFE@HOME TELEMONITORING FOR WOMEN AT RISK OF PREECLAMPSIA 75