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Is early measles vaccination associated with stronger survival benefits than later measles vaccination?

Overview of attention for article published in BMC Public Health, August 2018
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Title
Is early measles vaccination associated with stronger survival benefits than later measles vaccination?
Published in
BMC Public Health, August 2018
DOI 10.1186/s12889-018-5866-y
Pubmed ID
Authors

Jesper Sloth Hansen, Sanne Marie Thysen, Amabelia Rodrigues, Cesario Martins, Ane Bærent Fisker

Abstract

Measles vaccine (MV) may protect against non-measles mortality. We tested whether survival depended on age of measles vaccination. Bandim Health Project follows children under 5 years of age through a Health and Demographic Surveillance System in rural Guinea-Bissau. Children aged 6-36 months with a vaccination card inspected were followed to the next visit or for a maximum of 6 months. In Cox proportional-hazards models adjusted for age and village cluster, we compared the survival of children vaccinated with MV early (< 9 months), as recommended (9-11 months) or late (> 12+ months) with the survival of measles-unvaccinated children. Among measles-vaccinated children, we modelled the effect of age at measles vaccination linearly to assess mortality changes per month increase in vaccination age. From 1999 to 2006, 14,813 children (31,725 observations) were included. Children vaccinated with MV had a Hazard Ratio (HR) of 0.76 (95% CI: 0.63-0.91) compared with measles-unvaccinated children; censoring measles deaths did not change the results (HR = 0.79 (0.65-0.95)). For early MV the HR was 0.68 (0.53-0.87), for MV as recommended the HR was 0.77 (0.62-0.96) and for late MV the HR was 0.86 (0.67-1.11). Limiting the analysis to measles-vaccinated children, age at measles vaccination was associated with a 2.6% (0.4-5.1%) increase in mortality per month increase in vaccination age. Early MV was associated with a large survival advantage. The current policy to increase vaccination age, when measles control improves, may not optimize the impact of MV on child survival.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 47 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 47 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 6 13%
Researcher 5 11%
Other 4 9%
Student > Bachelor 3 6%
Student > Ph. D. Student 3 6%
Other 7 15%
Unknown 19 40%
Readers by discipline Count As %
Medicine and Dentistry 12 26%
Economics, Econometrics and Finance 2 4%
Unspecified 1 2%
Environmental Science 1 2%
Mathematics 1 2%
Other 7 15%
Unknown 23 49%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 09 August 2018.
All research outputs
#21,264,673
of 23,881,329 outputs
Outputs from BMC Public Health
#14,502
of 15,466 outputs
Outputs of similar age
#291,574
of 332,447 outputs
Outputs of similar age from BMC Public Health
#281
of 293 outputs
Altmetric has tracked 23,881,329 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 15,466 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.3. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 332,447 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 293 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.