Related Experiment Video
Updated: Jul 14, 2026

Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
Published on: January 16, 2019
Obstetric care of Jehovah's Witnesses: a 14-year observational study
Nadine Massiah1, Shobana Athimulam, Chin Loo
1Department of Obstetric and Gynaecology, Stirling Royal Infirmary, Fourth Valley Hospitals, Livilands Gate, Stirling, Scotland.
Abstract:
Over a 14-year period, the obstetric outcome of Jehovah's Witnesses in an inner city hospital was reviewed and the effect of refusal of blood on morbidity and mortality evaluated. Ninety women had 116 deliveries and of these, 24% were delivered by caesarean section, 10% had instrumental deliveries and 66% were normal vaginal deliveries. Postpartum haemorrhage of >1,000 mls occurred in 6% and postpartum anaemia was the commonest complication. The mean postdelivery haemoglobin (11.10 +/- 1.15 g/dl) was not significantly less from the mean predelivery haemoglobin level (11.81 +/- 1.62 g/dl) (P > 0.05, paired t test). The single maternal death occurred after caesarean hysterectomy, which when extrapolated, resulted in a 65-fold increased risk of maternal death compared to the national rate. The optimum management of pregnant women who decline transfusion is discussed.
Related Concept Videos
Observational Studies
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One example of...
Standards of Care II
Standards of Care I
Endoscopic Studies II: Thoracocentesis
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
Data Collection by Observations
An astronomer viewing the motion and brightness of stars in the sky and recording the data is an example of observational data collection. A botanist recording...
Preventive Healthcare Services
