Evidence map›Paper›PMID 33246453›Full record

ArticleBMC health services research2020

Impact of co-payment level increase of antidiabetic medications on glycaemic control: an interrupted time-series study among Finnish patients with type 2 diabetes.

Piia Lavikainen, Emma Aarnio, Kari Jalkanen, Hilkka Tirkkonen, Päivi Rautiainen, Tiina Laatikainen, Janne Martikainen

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in BMC health services research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05291026 (Evaluation of mHealth Intervention to Improve Medication Adherence in Type 2 Diabetes in Nigeria), which is not on this map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.9field-weighted citation impact, top 24% 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.

NCT05291026 nacompletednot on this map

Evaluation of mHealth Intervention to Improve Medication Adherence in Type 2 Diabetes in Nigeria: a Randomized Controlled Trial

TypeinterventionalSponsorObafemi Awolowo UniversityRan2018 to 2019Enrolled120ConditionsDiabetes MellitusArmsmobile phone-based health information
3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 34 citations in OpenAlex.

  1. Time Trends of Body Mass Index and its Impact on Glycemic Control Among Finnish Patients with Type 2 Diabetes.Diabetes therapy : research, treatment and education of diabetes and related disorders · 2025
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  7. Type 2 diabetes medication and HbA1c levels in North Karelia Finland, 2013-2019.Diabetic medicine : a journal of the British Diabetic Association · 2022
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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

7 authors at 1 institution in 1 country.

Piia LavikainenFaculty of Health Sciences, School of Pharmacy, University of Eastern Finland, P.O.Box. 1627, FI-70211, Kuopio, Finland. piia.lavikainen@uef.fi.ORCID http://orcid.org/0000-0003-3560-8860
Emma AarnioFaculty of Health Sciences, School of Pharmacy, University of Eastern Finland, P.O.Box. 1627, FI-70211, Kuopio, Finland.
Kari JalkanenFaculty of Health Sciences, School of Pharmacy, University of Eastern Finland, P.O.Box. 1627, FI-70211, Kuopio, Finland.
Hilkka TirkkonenJoint Municipal Authority for North Karelia Social and Health Services (Siun Sote), Joensuu, Finland.
Päivi RautiainenJoint Municipal Authority for North Karelia Social and Health Services (Siun Sote), Joensuu, Finland.
Tiina LaatikainenJoint Municipal Authority for North Karelia Social and Health Services (Siun Sote), Joensuu, Finland.
Janne MartikainenFaculty of Health Sciences, School of Pharmacy, University of Eastern Finland, P.O.Box. 1627, FI-70211, Kuopio, Finland.
University of Eastern Finland · FI

Funding

Kela 34/26/2018Strategic Research Council 312703
6 · The paper itself

Abstract

backgroundA new special reimbursement scheme (SRS) for non-insulin medications used for treatment of hyperglycaemia in type 2 diabetes (T2D) was implemented in Finland on January 1, 2017. The new SRS affected all community-dwelling Finnish T2D patients as all community-dwelling residents are eligible for reimbursement for prescription medications. The aim of the study was to evaluate the impact of this co-payment increase on glycaemic control among Finnish T2D patients.

methodsData on glycaemic control were collected with HbA1c measures from electronic health records from primary health care and specialized care in the North Karelia region, Finland, from patients with a confirmed T2D diagnosis in 2012 who were alive on January 1, 2017 (n = 8436). Average HbA1c levels were measured monthly 36 months before and 33 months after the policy change. Consumption of diabetes medications was measured with defined daily doses (DDDs) based on reimbursed medication purchases. Interrupted time series design analysed with segmented regression model was applied to examine the effect of the policy change on average HbA1c levels.

resultsEight thousand one hundred forty-three T2D patients had at least one HbA1c measurement within 01/2014-9/2019. Mean age of the patients was 68.1 (SD 11.3) years and 53.0% were women. Average time since T2D diagnosis was 11.5 (SD 6.1) years. An estimated increase of 0.81 (95% confidence interval, CI, 0.04-1.58) mmol/mol in average HbA1c levels was detected at the time of the policy change. In subgroup analyses, strongest effects were detected among patients who used only other diabetes medications than insulin or metformin in 2016 (3.56 mmol/mol, 95% CI 2.50-4.62). Meanwhile, yearly consumption of diabetes medications decreased slightly from 618.9 (SD 487.8) DDDs/patient in 2016 to 602.9 (SD 475.6) DDDs/patient in 2017 (p = 0.048).

conclusionsSimultaneously with the increase of the co-payment level, the average HbA1c level increased among T2D patients from the North Karelia region, Finland. This may be explained by the decreased consumption of diabetes medications between 2016 and 2017. Special attention should be allocated to glycaemic control of patients utilizing only other antidiabetic medications than metformin or insulin.

Indexed as

Cost SharingDiabetes Mellitus, Type 2Hypoglycemic AgentsInterrupted Time Series AnalysisAgedBlood GlucoseFemaleFinlandGlycated HemoglobinHumansMaleBlood GlucoseGlycated HemoglobinHypoglycemic AgentsCo-payment increaseGlycaemic controlType 2 diabetes

Identifiers

PMID33246453
PMCPMC7694920
OpenAlexW3109517929

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.