A randomized controlled trial of daily text messages versus monthly paper diaries to collect bleeding data after intrauterine device insertion.

ABSTRACT:

Objective

Bleeding data in contraceptive trials are often collected using daily diaries, but data quality may vary due to compliance and recall bias. Text messaging is a widespread and promising modality for data collection.

Study design

This trial randomized participants 1:1 to use text messages or paper diaries to report on bleeding experienced during the 90 days after intrauterine device (IUD) insertion. Participants chose either the copper T380A or the 52-mg levonorgestrel IUD. Our primary outcome was number of days of reported bleeding data. We hypothesized that data gathered with daily text messages would have fewer missing values than paper diaries. Intention to treat analyses used the rank-sum test to compare medians.

Results

Two hundred thirty women enrolled,

SUBMITTER: Nippita S 

PROVIDER: S-EPMC4967589 | biostudies-literature | 2015 Dec

REPOSITORIES: biostudies-literature