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Journal : Science Midwifery

The effect of body mass index and position on blood surface area on sanitary pads Fauziah, Siska Febrina; Lestaluhu, Viqy; Kurniawati, Imas; Mardiani, Dita Eka; Diana, Helmi
Science Midwifery Vol 13 No 5 (2025): Health Sciences and related fields
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/midwifery.v13i5.2168

Abstract

Accurate measurement of postpartum blood loss is crucial for guiding appropriate medical interventions. Digital image processing offers potential to enhance visual estimation accuracy, though refinement is still needed for sanitary pad media. This study examined the effect of body mass index (BMI) and body position on the blood surface area on sanitary pads to support the development of digital image-based measurement methods. An experimental design simulated postpartum blood loss using three BMI categories (underweight, normal, overweight) and three positions (sitting, side-lying, supine), each repeated twice. Blood surface area was measured using digital image processing and analyzed with the Kruskal-Wallis and Friedman tests. The sanitary pads’ absorption capacity ranged from 70–80 mL. Blood surface area did not differ significantly by BMI (p=0.597) but varied significantly by position (p=0.000). A trend of increasing surface area with higher BMI was observed. These findings suggest that both BMI and position should be considered in refining digital image-based methods for accurate and objective postpartum blood loss measurement.