Related Experiment Video
Updated: Jul 20, 2026

10:42
Design to Implementation Study for Development and Patient Validation of Paper-Based Toehold Switch Diagnostics
Published on: June 17, 2022
3.6K
Field Testing of Second Generation of Colour-Coded Rings for Detecting Slow Progress of Labour at Rural Health
Asha K Pratinidhi1, P P Doke2, A N Shrotri3
1Krishna Institute of Medical Sciences Deemed University, Karad, India.
Journal of Obstetrics and Gynaecology of India
|September 22, 2016
Summary
Colour-coded rings effectively monitored labor, reducing perinatal mortality and birth asphyxia. This innovative tool proved feasible and acceptable in primary health centers, offering a practical alternative to cervicography.
Area of Science:
- Obstetrics and Gynecology
- Public Health Technology
- Maternal and Child Health
Background:
- An innovative color-coded ring system, based on cervicographic principles, was developed for delivery monitoring.
- This technology aims to improve the management of labor and delivery in resource-limited settings.
Purpose of the Study:
- To evaluate the efficacy, feasibility, and acceptability of using color-coded rings for monitoring the active phase of labor.
- To assess the impact of this technology on perinatal outcomes.
Main Methods:
- A comparative study conducted in primary health centers in Maharashtra, India, over 15 months.
- Trained health workers in the study area utilized color-coded rings, while control areas followed routine care.
- Data from 6705 live births in the study area and 6341 in the control area were analyzed.
Main Results:
- The study area demonstrated a significantly lower perinatal mortality rate (15.9/1000 live births) compared to the control area (23.9/1000 live births).
- Cause-specific perinatal mortality due to birth asphyxia was halved in the study area (4.2/1000 live births) versus the control area (8.5/1000 live births).
Conclusions:
- The high utilization rate of color-coded rings correlated with reduced birth asphyxia mortality, indicating its effectiveness.
- Color-coded rings represent a feasible, acceptable, and effective alternative to cervicography in field conditions for labor monitoring.

