Abstract
The World Health Organization (WHO) recommends calcium supplementation for prevention of pre-eclampsia, but factors affecting adoption and acceptability of the recommendations among pregnant women have not been examined. We explored adoption of the WHO guidelines in Kenya, using the trials of improved practices. We recruited 38 pregnant women and assigned participants to three regimens representing potential trade-offs among daily dose, bioavailability, and acceptability. Participants were provided with supplements, requested to select preferred product type, counselled on how to take them, and interviewed 4 times over 6weeks to assess their experiences. We tracked bottle opening with electronic monitors, as proxy for supplement consumption. We analysed interview transcripts thematically. All participants were willing to try the supplements. Average daily consumption ranged from 77 to 1,577mg/d. Most participants (74%) chose the chewable product. Participants preferred its "sweet taste" and liked the ability to consume it without water. Women in the 2-dose regimen were least likely to switch; however, women assigned to the 3-dose regimen, or who switched to the 3-dose regimen, consumed the most calcium per day. Difficulties with the 4-dose regimen included afternoon doses when women were likely to forget and having to wait hours after supper for last dose. Use of an illustrated calendar, keeping supplements in conspicuous locations and requesting support from relatives were strategies that supported adherence. Pregnant women are likely to adopt Ca supplementation, with appropriate programmatic adaptations. Careful attention to product attributes, regimen complexity, and strategies for reassuring and reminding women are needed to adapt the WHO guidelines.
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