Evidence map›Paper›PMID 23118658›Full record

ArticleThe journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG2012

Relationship of caffeine dosing with serum alkaline phosphatase levels in extremely low-birth-weight infants.

Jamie L Miller, Raja R Nandyal, Michael P Anderson, Marilyn B Escobedo

Open access · greenAbstract read
In one paragraph

Article in The journal of pediatric pharmacology and therapeutics : JPPT : the official journal of PPAG, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.2field-weighted citation impact, top 42% of its field
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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Serum caffeine concentrations and short-term outcomes in premature infants of ⩽29 weeks of gestation.Journal of perinatology : official journal of the California Perinatal Association · 2015
    Article
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

4 authors at 1 institution in 1 country.

Jamie L MillerDepartment of Pharmacy, Clinical and Administrative Sciences, University of Oklahoma College of Pharmacy, Oklahoma City, Oklahoma.
Raja R Nandyal
Michael P Anderson
Marilyn B Escobedo
University of Oklahoma · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine whether patients receiving higher doses of caffeine have increased alkaline phosphatase (ALP) levels, as a biomarker for osteopenia.

methodsThis descriptive, retrospective study included 152 extremely low-birth-weight infants (ie, <1 kg) admitted from January 1, 2007, to September 30, 2009, who received caffeine for >2 weeks. Patients were divided into a low-dose (<7.5 mg/kg/day) and high-dose (≥7.5 mg/kg/day) group based on maximum caffeine dose received. The primary objective was to compare peak ALP levels between groups. Secondary objectives included a comparison of caffeine regimens and risk factors for osteopenia between groups and identification of factors significantly related to increase in ALP. Between-group analysis was performed using the chi-squared or Fisher exact test and Wilcoxon Mann-Whitney median test or t-tests where appropriate. A linear regression model was used, with peak ALP as the dependent variable.

resultsA majority of the patients (n=122) were included in the high-dose caffeine group. No significant difference in maximum ALP level between groups (median, 599.5, versus 602.5 units/L, p=0.72). Gestational age and birth weight were inversely related to ALP, whereas parenteral nutrition duration was directly related. No significant relationship between caffeine dose and ALP was identified.

conclusionsIn this preliminary study, using ALP as a biochemical marker for bone turnover, there does not appear to be a dose-related effect between ALP and caffeine dose.

Indexed as

alkaline phosphatasecaffeineextremely low-birth-weightosteopenia low-birth-weight

Identifiers

PMID23118658
PMCPMC3428188
OpenAlexW1834616898

What OpenQuestion holds

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Registered trials

None linked

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.