Evidence map›Paper›PMID 26328549›Full record

SynthesisBMC pediatrics2015

Age of introduction of first complementary feeding for infants: a systematic review.

Wafaa Qasem, Tanis Fenton, James Friel

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC pediatrics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 4 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Wafaa QasemDepartment of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada. wafaaqasem@yahoo.com.
Tanis FentonNutrition Services, Alberta Health Services, Alberta Children's Hospital Research, Institute, Department of Community Health Sciences, University of Calgary, TRW Building, 3280 Hospital Dr NW, Calgary, AB, T2N 4Z6, Canada. tfenton@ucalgary.ca.
James FrielDepartment of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada. James.Friel@umanitoba.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDespite a World Health Organization recommendation for exclusive breastfeeding of all full-term infants to 6 months of age, it is not clear what the health implications may be. Breast milk alone may not meet the nutrition needs for all growing infants, leaving them at risk for deficiencies. The objective of this study was to investigate the relationship between moderate (4 months) versus late (6 months) introduction of complementary foods to the full-term breastfed infant on iron status and growth.

methodsAn electronic search of peer-reviewed and gray-literature was conducted for randomized control trials (RCTs) and observational studies related to the timing of introduction of complementary foods. Iron status and growth data from the relevant RCTs were analyzed using RevMan 5.2.11.

resultsThree RCTs and one observational study met the inclusion criteria. Meta-analysis showed significantly higher hemoglobin levels in infants fed solids at 4 months versus those fed solids at 6 months in developing countries [mean difference [MD]: 5.0 g/L; 95% CI: 1.5, 8.5 g/L; P = 0.005]. Meta-analysis also showed higher serum ferritin levels in the 4-month group in both developed and developing countries [MD: 26.0 μg/L; 95% CI: -0.1, 52.1 μg/L, P = 0.050], [MD: 18.9 μg/L; 95% CI: 0.7, 37.1 μg/L, P = 0.040]. Short follow-up periods and small sample sizes of the included studies were the major limitations.

conclusionsRCT evidence suggests the rate of iron deficiency anemia in breastfed infants could be positively altered by introduction of solids at 4 months.

Indexed as

Breast FeedingInfant FoodInfant Nutritional Physiological PhenomenaAge FactorsAnemia, Iron-DeficiencyChild DevelopmentDeveloping CountriesFerritinsGrowthHumansInfantIron, DietaryFerritinsIron, Dietary

Identifiers

PMID26328549
PMCPMC4557230

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.