Evidence map›Paper›PMID 19152692›Full record

ArticleCardiovascular diabetology2009

Improved glycaemic control by switching from insulin NPH to insulin glargine: a retrospective observational study.

Peter Sharplin, Jason Gordon, John R Peters, Anthony P Tetlow, Andrea J Longman, Philip McEwan

Abstract readComparative StudyEvaluation StudyMulticenter Study
In one paragraph

Article in Cardiovascular diabetology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. The Comparative Dosing and Glycemic Control of Intermediate and Long-Acting Insulins in Adult Patients With Type 1 and 2 Diabetes Mellitus.The Journal of pharmacy technology : jPT : official publication of the Association of Pharmacy Technicians · 2022
    Review
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Observational
  9. Article
  10. Clinical experience with insulin glargine in type 1 diabetes.Diabetes technology & therapeutics · 2010
    Review
  11. 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

6 authors.

Peter SharplinCHKS Health Economics Unit, Health Park, Cardiff, UK. info@chks.co.uk
Jason Gordon
John R Peters
Anthony P Tetlow
Andrea J Longman
Philip McEwan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundInsulin glargine (glargine) and insulin NPH (NPH) are two basal insulin treatments. This study investigated the effect on glycaemic control of switching from a NPH-based regimen to a glargine-based regimen in 701 patients with type 1 (n= 304) or type 2 (n= 397) diabetes, using unselected primary care data.

methodsData for this retrospective observational study were extracted from a UK primary care database (The Health Improvement Network). Patients were required to have at least 12 months of data before and after switching from NPH to glargine. The principal analysis was the change in HbA(1c) after 12 months treatment with glargine; secondary analyses included change in weight and total daily insulin dose. Inconsistent reporting of hypoglycemic episodes precludes reliable reporting of this outcome. Multivariate analyses were used to adjust for baseline characteristics and confounding variables.

resultsAfter adjustment, both diabetic cohorts showed statistically significant reductions in mean HbA(1c) 12 months after the switch, by 0.38% (p < 0.001) in type 1 patients and 0.31% (p < 0.001) in type 2 patients. Improvement in HbA1c was positively correlated with baseline HbA(1c); patients with baseline HbA(1c) > or = 8% had reductions of 0.57% (p < 0.001) and 0.47% (p < 0.001), respectively. There was no significant change in weight or total daily insulin dose while on glargine. The majority of patients received a basal-bolus regimen prior to and after the switch (mean 79.3% before and 77.2% after switch in type 1 patients, and 80.4% and 76.8%, respectively in type 2 patients, p > 0.05).

conclusionIn routine clinical practice, switching from NPH to glargine provides the opportunity for improving glycaemic control in diabetes patients inadequately controlled by NPH.

Indexed as

AdultBody WeightCohort StudiesDatabases, FactualDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2FemaleGlycated HemoglobinHumansHypoglycemiaInsulinInsulin GlargineInsulin, IsophaneInsulin, Long-ActingMaleMiddle AgedGlycated HemoglobinInsulinInsulin GlargineInsulin, IsophaneInsulin, Long-Acting

Identifiers

PMID19152692
PMCPMC2637245

What OpenQuestion holds

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Registered trials

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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.