Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment
Background.: Primary non-adherence refers to the patient not redeeming a prescribed medication at some point during drug therapy. Research has mainly focused on secondary non-adherence. Prior to this study, the overall rate of primary non-adherence in general practice in Iceland was not known. Objec...
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Online Access: | https://portal.findresearcher.sdu.dk/da/publications/5d615d2f-88d5-4750-8f58-1087a6e1ca41 https://doi.org/10.1093/fampra/cms049 |
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ftsydanskunivpub:oai:sdu.dk:publications/5d615d2f-88d5-4750-8f58-1087a6e1ca41 2024-09-15T18:13:46+00:00 Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment Linnet, Kristján Halldórsson, Matthías Thengilsdóttir, Gudrún Einarsson, Ólafur B Jónsson, Kristinn Almarsdóttir, Anna Birna 2013-02 https://portal.findresearcher.sdu.dk/da/publications/5d615d2f-88d5-4750-8f58-1087a6e1ca41 https://doi.org/10.1093/fampra/cms049 eng eng https://portal.findresearcher.sdu.dk/da/publications/5d615d2f-88d5-4750-8f58-1087a6e1ca41 info:eu-repo/semantics/restrictedAccess Linnet , K , Halldórsson , M , Thengilsdóttir , G , Einarsson , Ó B , Jónsson , K & Almarsdóttir , A B 2013 , ' Primary non-adherence to prescribed medication in general practice : lack of influence of moderate increases in patient copayment ' , Family Practice , vol. 30 , no. 1 , pp. 69-75 . https://doi.org/10.1093/fampra/cms049 Age Factors Chi-Square Distribution Cost Sharing Drug Prescriptions Female General Practice Humans Iceland Male Medication Adherence Odds Ratio Prescription Fees Retirement Non-redemption Primary non-adherence Non-adherence Pharmacotherapy Copayment article 2013 ftsydanskunivpub https://doi.org/10.1093/fampra/cms049 2024-08-05T23:48:16Z Background.: Primary non-adherence refers to the patient not redeeming a prescribed medication at some point during drug therapy. Research has mainly focused on secondary non-adherence. Prior to this study, the overall rate of primary non-adherence in general practice in Iceland was not known. Objectives.: To determine the prevalence of primary non-adherence, test whether it is influenced by a moderate increase in patient copayment implemented in 2010 and examine the difference between copayment groups (general versus concession patients). Methods.: A population-based data linkage study, wherein prescriptions issued electronically by 140 physicians at 16 primary health care centres in the Reykjavik capital area during two periods before and after increases in copayment were matched with those dispensed in pharmacies, the difference constituting primary non-adherence (population: 200-000; patients: 21-571; prescriptions: 22-991). Eight drug classes were selected to reflect symptom relief and degree of copayment. Two-tailed chi-square test and odds ratios for non-adherence by patient copayment groups were calculated. Results.: The rate of primary non-adherence was 6.2%. It was lower after the increased copayment, reaching statistical significance for hypertensive agents, non-steroidal anti-inflammatory drugs (NSAIDs) and antipsychotics. Generally, primary non-adherence, except for antibacterials and NSAIDs, was highest in old-age pensioners. Conclusions.: Primary non-adherence in Icelandic general practice was within the range of prior studies undertaken in other countries and was not adversely affected by the moderate increase in patient copayment. Older patients showed a different pattern of primary non-adherence. This may possibly be explained by higher prevalence of medicine use. Article in Journal/Newspaper Iceland University of Southern Denmark Research Portal Family Practice 30 1 69 75 |
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Open Polar |
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University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
topic |
Age Factors Chi-Square Distribution Cost Sharing Drug Prescriptions Female General Practice Humans Iceland Male Medication Adherence Odds Ratio Prescription Fees Retirement Non-redemption Primary non-adherence Non-adherence Pharmacotherapy Copayment |
spellingShingle |
Age Factors Chi-Square Distribution Cost Sharing Drug Prescriptions Female General Practice Humans Iceland Male Medication Adherence Odds Ratio Prescription Fees Retirement Non-redemption Primary non-adherence Non-adherence Pharmacotherapy Copayment Linnet, Kristján Halldórsson, Matthías Thengilsdóttir, Gudrún Einarsson, Ólafur B Jónsson, Kristinn Almarsdóttir, Anna Birna Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
topic_facet |
Age Factors Chi-Square Distribution Cost Sharing Drug Prescriptions Female General Practice Humans Iceland Male Medication Adherence Odds Ratio Prescription Fees Retirement Non-redemption Primary non-adherence Non-adherence Pharmacotherapy Copayment |
description |
Background.: Primary non-adherence refers to the patient not redeeming a prescribed medication at some point during drug therapy. Research has mainly focused on secondary non-adherence. Prior to this study, the overall rate of primary non-adherence in general practice in Iceland was not known. Objectives.: To determine the prevalence of primary non-adherence, test whether it is influenced by a moderate increase in patient copayment implemented in 2010 and examine the difference between copayment groups (general versus concession patients). Methods.: A population-based data linkage study, wherein prescriptions issued electronically by 140 physicians at 16 primary health care centres in the Reykjavik capital area during two periods before and after increases in copayment were matched with those dispensed in pharmacies, the difference constituting primary non-adherence (population: 200-000; patients: 21-571; prescriptions: 22-991). Eight drug classes were selected to reflect symptom relief and degree of copayment. Two-tailed chi-square test and odds ratios for non-adherence by patient copayment groups were calculated. Results.: The rate of primary non-adherence was 6.2%. It was lower after the increased copayment, reaching statistical significance for hypertensive agents, non-steroidal anti-inflammatory drugs (NSAIDs) and antipsychotics. Generally, primary non-adherence, except for antibacterials and NSAIDs, was highest in old-age pensioners. Conclusions.: Primary non-adherence in Icelandic general practice was within the range of prior studies undertaken in other countries and was not adversely affected by the moderate increase in patient copayment. Older patients showed a different pattern of primary non-adherence. This may possibly be explained by higher prevalence of medicine use. |
format |
Article in Journal/Newspaper |
author |
Linnet, Kristján Halldórsson, Matthías Thengilsdóttir, Gudrún Einarsson, Ólafur B Jónsson, Kristinn Almarsdóttir, Anna Birna |
author_facet |
Linnet, Kristján Halldórsson, Matthías Thengilsdóttir, Gudrún Einarsson, Ólafur B Jónsson, Kristinn Almarsdóttir, Anna Birna |
author_sort |
Linnet, Kristján |
title |
Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
title_short |
Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
title_full |
Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
title_fullStr |
Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
title_full_unstemmed |
Primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
title_sort |
primary non-adherence to prescribed medication in general practice:lack of influence of moderate increases in patient copayment |
publishDate |
2013 |
url |
https://portal.findresearcher.sdu.dk/da/publications/5d615d2f-88d5-4750-8f58-1087a6e1ca41 https://doi.org/10.1093/fampra/cms049 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Linnet , K , Halldórsson , M , Thengilsdóttir , G , Einarsson , Ó B , Jónsson , K & Almarsdóttir , A B 2013 , ' Primary non-adherence to prescribed medication in general practice : lack of influence of moderate increases in patient copayment ' , Family Practice , vol. 30 , no. 1 , pp. 69-75 . https://doi.org/10.1093/fampra/cms049 |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/5d615d2f-88d5-4750-8f58-1087a6e1ca41 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1093/fampra/cms049 |
container_title |
Family Practice |
container_volume |
30 |
container_issue |
1 |
container_start_page |
69 |
op_container_end_page |
75 |
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1810451528873410560 |