Evidence map›Paper›PMID 18348310›Full record

ArticleJournal of clinical laboratory analysis2008

Does cigarette smoking affect the diagnostic reliability of hemoglobin alpha 2 delta 2 (HbA2)?

Issa S Tarazi, Mahmoud M Sirdah, Hesham El Jeadi, Rami M Al Haddad

Abstract read
In one paragraph

Article in Journal of clinical laboratory analysis, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact, top 86% 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

4 citing papers in PubMed, 10 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
  4. 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 3 institutions in 2 countries.

Issa S TaraziThalassaemia and Haemophilia Centre, Palestine Avenir Foundation, Gaza, Palestine.
Mahmoud M Sirdah
Hesham El Jeadi
Rami M Al Haddad
Avenir Health · USAl-Azhar University – Gaza · PSUniversity of Palestine · PS

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Quantitation of hemoglobin alpha 2 delta 2 (HbA2) is a basic and confirmatory test in diagnosing the carrier state of beta-thalassemia. The present study was designed to investigate the effect of cigarette smoking on the diagnostic reliability of HbA2. A total of 2,867 (654 smokers and 2,213 never smokers) male subjects were involved in the present study. The subjects were categorized into three groups according to their laboratory findings: beta-thalassemia minor, iron deficient, and normal groups. Complete blood count (CBC) parameters and HbA2 levels were compared between smokers and never smokers of each group according to the independent-samples t-test using the SPSS program, significance results were reported at P<0.05. The results showed a significant increase in red blood cell (RBC) mass (RBC count and hematocrit [Hct]) and Hb concentration in smokers of all groups; however, no significant differences were reported in the HbA2 level between smokers and never smokers in all groups. It was concluded that cigarette smoking does not affect the diagnostic reliability of the HbA2 test.

Indexed as

SmokingAdultbeta-ThalassemiaBlood Cell CountCarrier StateCase-Control StudiesHemoglobin A2HumansIron DeficienciesMaleHemoglobin A2

Identifiers

PMID18348310
PMCPMC6648953
OpenAlexW2090027379

What OpenQuestion holds

Textmetadata
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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.