In rural Tanzania, babies born with low birth weight are less likely to miss their first DTP shot on time compared to babies with normal birth weight.

Scientific Claim

In rural Morogoro, low birth weight infants are associated with a 31% lower risk of delayed or incomplete DTP1 vaccination compared to normal birth weight infants.

Original Statement

“In Morogoro region, low birthweight infants had 31% (95% CI: 20–40%) reduced risk of delayed or not received DTP1 vaccination.”

From study:Determinants of delayed or incomplete diphtheria-tetanus-pertussis vaccination in parallel urban and rural birth cohorts of 30,956 infants in Tanzania

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

association

Can only show association/correlation

Assessment Explanation

The claim uses 'associated with' which correctly reflects the observational study's ability to show correlation without implying causation.

Evidence from Studies

Supporting (0)

No supporting evidence found

Contradicting (1)

Determinants of delayed or incomplete diphtheria-tetanus-pertussis vaccination in parallel urban and rural birth cohorts of 30,956 infants in Tanzania

Cohort Study

Human

2019 Feb 26

The study didn’t even look at babies' birth weight, so it can’t say whether low-weight babies are more or less likely to get their vaccines on time.

Source Study

Determinants of delayed or incomplete diphtheria-tetanus-pertussis vaccination in parallel urban and rural birth cohorts of 30,956 infants in Tanzania

Score: 66

DOI: 10.1186/s12879-019-3828-3

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