The incidence of postpartum haemorrhage has been increasing in several developed countries over the past two decades. Obese women are at increased risk of postpartum hemorrhage. Till date BMI has been used to define obesity. Maternal abdominal subcutaneous fat thickness (SCFT) can be used as a measure for central obesity and can be measured by ultrasound easily. The present study was done to find association between maternal BMI and SCFT with development of PPH and to find a cut-off value of BMI and SCFT for prediction of risk of PPH. Methods: 200 women with live singleton pregnancy of 16-18 weeks gestation were included in the study after obtaining written informed consent. Maternal abdominal subcutaneous thickness was measured by USG. All women were monitored till delivery and observed for PPH. All data were entered into MS excel sheet and analysed. Results: Mean BMI was significantly more in women who had PPH (25.85 ± 3.24 vs 22.63 ± 2.80 kg/m2, p - <0.001). Mean SCFT was significantly more in women who had PPH than in women without PPH (16.12 ± 2.75 vs 12.22 ± 3.00 mm, p - <0.001). On ROC curve analysis, SCFT above 15.7 mm (AUC=0.840) predicted PPH with a sensitivity of 85% and specificity of 86% and associated with approximately 34 times increased risk of PPH [OR 34.1; 95% CI ((7.1383 – 162.49290, p - <0.0001]. Conclusion: Maternal abdominal subcutaneous fat thickness measured at 16 to 18 weeks of pregnancy by USG is a reliable marker to identify women at risk of PPH.

Magnesium is the second most common intracellular cation which is essential in metabolic processes, protein synthesis, membrane integrity, nervous tissue conduction, neuromuscular excitability, muscle contraction. In obstetrics magnesium has an important role in maternal and foetal wellbeing. Limited data is available in our state to find hypomagnesaemia during pregnancy and its association with socio-demographic profile of the women so the present study was done to find association of socio-demographic factors of the pregnant women with hypomagnesaemia. Methods: This was a hospital based cross-sectional study. 100 women in their third trimester of pregnancy and were included in the study after obtaining written informed consent. After detail history and examination, serum magnesium was measured. And data were analyzed. Results: Risk of hypomagnesaemia was 1.3 times in women who are ≥ 25 years, 1.5 times in urban women,3 times in obese women and 3 to 4 times in pre-eclamptic women. No significant association between hypomagnesaemia and gravid and parity. Women with gestational age <34 weeks are 2.7 times at risk of hypomagnesaemia. There was a weak positive correlation between gestational age and serum magnesium and a weak negative correlation between maternal serum magnesium and maternal age, systolic blood pressure and diastolic blood pressure. Conclusion: Magnesium should be measured in every pregnant women so that magnesium deficiency can be identified early and adequate measures and magnesium supplementation can be given to prevent untoward complications.