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An event recorder for infant feeding research

B Taylor¹, P Lujan, M Vázquez-Geffroy

¹School of Mathematical Sciences and Engineering, New Mexico Highlands University, Las Vegas 87701, USA.

Computer Methods and Programs in Biomedicine

|August 1, 1995

Summary

This study developed an HP 48 calculator program for recording breastfeeding events, aiding research into postpartum amenorrhea. The system provides detailed behavioral data for analysis.

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Area of Science:

Reproductive Health
Behavioral Science
Biomedical Engineering

Background:

Postpartum amenorrhea is influenced by breastfeeding duration and frequency.
Accurate recording of breastfeeding behavior is crucial for research.
Existing methods for data collection can be cumbersome.

Purpose of the Study:

To develop a user-friendly tool for recording breastfeeding events.
To analyze time-series data of breastfeeding behavior.
To investigate factors maintaining postpartum amenorrhea.

Main Methods:

Developed an Event Recorder program for the HP 48 calculator.
Utilized a flexible menu structure for recording menstrual history and fertility symptoms.
Created a Visual C++ Windows program for graphical data representation and analysis.

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Extracted key breastfeeding metrics like bout length, interval, frequency, and suckling duration.

Main Results:

The HP 48 calculator proved to be a robust instrument for self-recording breastfeeding data.
Time-varying covariates of breastfeeding activity were successfully extracted.
Behavioral data were easily transferred electronically during monthly home visits.

Conclusions:

The Event Recorder system facilitates accurate and efficient collection of breastfeeding data.
This tool supports prospective studies on postpartum amenorrhea.
Electronic data transfer enhances the feasibility of longitudinal research.