How multiple episodes of exclusive breastfeeding impact estimates of exclusive breastfeeding duration: report from the eight-site MAL-ED birth cohort study

作者：Ambikapathi Ramya; Kosek Margaret N; Lee Gwenyth O; Mahopo Cloupas; Patil Crystal L; Maciel Bruna L; Turab Ali; Islam M Munirul; Ulak Manjeswori; Bose Anuradha; Paredes Olortegui Maribel; Pendergast Laura L; Murray Kolb Laura E; Lang Dennis; McCormick Benjamin J J; Caulfield Laura E^*

来源：Maternal and Child Nutrition, 2016, 12(4): 740-756.

DOI：10.1111/mcn.12352

• exclusive breastfeeding
• duration
• DHS
• prevalence
• metrics
• MAL-ED
• Nepal
• Bangladesh
• Pakistan
• India
• Brazil
• Peru
• Tanzania
• South Africa

The duration of exclusive breastfeeding (EBF) is often defined as the time from birth to the first non-breast milk food/liquid fed (EBFLONG), or it is estimated by calculating the proportion of women at a given infant age who EBF in the previous 24h (EBFDHS). Others have measured the total days or personal prevalence of EBF (EBFPREV), recognizing that although non-EBF days may occur, EBF can be re-initiated for extended periods. We compared breastfeeding metrics in the MAL-ED study; infants' breastfeeding trajectories were characterized from enrollment (median 7days, IQR: 4, 12) to 180days at eight sites. During twice-weekly surveillance, caretakers were queried about infant feeding the prior day. Overall, 101833 visits and 356764 child days of data were collected from 1957 infants. Median duration of EBFLONG was 33days (95% CI: 32-36), compared to 49days based on the EBFDHS. Median EBFPREV was 66days (95% CI: 62-70). Differences were because of the return to EBF after a non-EBF period. The median number of returns to EBF was 2 (IQR: 1, 3). When mothers re-initiated EBF (second episode), infants gained an additional 18.8days (SD: 25.1) of EBF, and gained 13.7days (SD: 18.1) (third episode). In settings where women report short gaps in EBF, programmes should work with women to return to EBF. Interventions could positively influence the duration of these additional periods of EBF and their quantification should be considered in impact evaluation studies.

• 出版日期2016-10
• 单位河北医科大学