We thank Safiri S and Ayubi E [
[1]
]. for their methodological observations to our manuscript [
[2]
]. We agree with their affirmation that the categorization of variables implies loss
of information, but we prefer to do so to be able to compare our results with other
studies. Indeed, the majority of studies included in a recent systematic reviews [
- Salinero-Fort M.A.
- San Andrés-Rebollo F.J.
- Gómez-Campelo P.
- de Burgos-Lunar C.
- Cárdenas-Valladolid J.
- Abánades-Herranz J.C.
- et al.
Body mass index and all-cause mortality among type 2 diabetes mellitus patients: findings
from the 5-year follow-up of the MADIABETES cohort.
Eur J Intern Med. 2017; 43: 46-52
3
,
4
,
5
,
- Zaccardi F.
- Dhalwani N.N.
- Papamargaritis D.
- Webb D.R.
- Murphy G.J.
- Davies M.J.
- et al.
Nonlinear association of BMI with all-cause and cardiovascular mortality in type 2
diabetes mellitus: a systematic review and meta-analysis of 414,587 participants in
prospective studies.
Diabetologia. 2016 Nov 25; ([Epub ahead of print] PubMed PMID: 27888288)
6
] use BMI categories based on recommendations from the World Health Organization [
[7]
], the National Heart, Lung, and Blood Institute [
[8]
], and local criteria due to the statistical distribution of the data. Many studies
from these systematic reviews were categorized as being of high quality according
to different scales [
[4]
]. In this sense, the Newcastle-Ottawa Quality assessment scale considers as “better”
those cohort studies that allow comparability on the basis of the design or the analysis.Keywords
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References
- Body mass index and all-cause mortality among type 2 diabetes mellitus patients: Methodological issues.Eur J Intern Med. 2018; 47: e27
- Body mass index and all-cause mortality among type 2 diabetes mellitus patients: findings from the 5-year follow-up of the MADIABETES cohort.Eur J Intern Med. 2017; 43: 46-52
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- Nonlinear association of BMI with all-cause and cardiovascular mortality in type 2 diabetes mellitus: a systematic review and meta-analysis of 414,587 participants in prospective studies.Diabetologia. 2016 Nov 25; ([Epub ahead of print] PubMed PMID: 27888288)
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Article info
Publication history
Published online: September 08, 2017
Accepted:
September 5,
2017
Received:
September 2,
2017
Identification
Copyright
© 2017 Published by Elsevier B.V. on behalf of European Federation of Internal Medicine.
