Evidence map›Paper›PMID 24660123›Full record

ArticleHawai'i journal of medicine & public health : a journal of Asia Pacific Medicine & Public Health2014

Does ethnicity play a role in the dosing of warfarin in Hawai'i?

Sydney Y Tatsuno, Eric M Tatsuno

Open access · greenAbstract read
In one paragraph

Article in Hawai'i journal of medicine & public health : a journal of Asia Pacific Medicine & Public Health, 2014. 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
1.6field-weighted citation impact, top 17% 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. Trial
  2. Article
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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

2 authors at 1 institution in 1 country.

Sydney Y TatsunoDepartment of Medicine, John A. Burns School of Medicine, Honolulu, HI.
Eric M TatsunoDepartment of Medicine, John A. Burns School of Medicine, Honolulu, HI.
University of Hawaiʻi at Mānoa · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Warfarin is the most common anticoagulant prescribed and its metabolism has been linked to two specific genes, CYP2C9 and VKORC1. This study analyzed 113 patients from 4 different ethnic backgrounds (Asian, Native Hawaiian, Portuguese, and Caucasian) and investigated the association between the mean daily dose of warfarin and ethnicity. Caucasian patients required the highest mean daily dose of warfarin 4.4 mg/day while Asian patients required the lowest mean daily dose of warfarin 2.5 mg/day. Portuguese patients and Native Hawaiian patients required mean of 3.8 mg/day. All three groups required a significantly lower dose than Caucasians. When adjusted for weight in kilograms, Native Hawaiian patients required a dose of 4.3 × 10(-2) mg/kg, Portuguese 4.4 × 10(-2) mg/kg and Asians 4.0 × 10(-2) mg/kg. These three populations had similar mean milligrams/kilogram dose requirements while Caucasians required a significantly higher dose of 5.3 × 10(-2) mg/kg. This data suggests that ethnicity should be taken into consideration when dosing warfarin.

Indexed as

AgedAged, 80 and overAnticoagulantsAsian PeopleCytochrome P-450 CYP2C9FemaleHawaiiHumansMaleMiddle AgedPortugalVitamin K Epoxide ReductasesWarfarinWhite PeopleAnticoagulantsCytochrome P-450 CYP2C9Vitamin K Epoxide ReductasesVKORC1 protein, humanWarfarin

Identifiers

PMID24660123
PMCPMC3962032
OpenAlexW1618208097

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.