Evidence map›Paper›PMID 22328117›Full record

ArticleArthritis care & research2012

Adherence with intravenous zoledronate and intravenous ibandronate in the United States Medicare population.

Jeffrey R Curtis, Huifeng Yun, Robert Matthews, Kenneth G Saag, Elizabeth Delzell

Open access · greenAbstract readEvaluation Study
In one paragraph

Article in Arthritis care & research, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 6 pooled it
2.7field-weighted citation impact, top 9% 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

29 citing papers in PubMed, 6 syntheses or guidelines pooled it, 60 citations in OpenAlex.

  1. Pooled it
  2. Comparing medication adherence in patients receiving bisphosphonates for preventing fragility fractures: a comprehensive systematic review and network meta-analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2022
    Pooled it
  3. Persistence and adherence to parenteral osteoporosis therapies: a systematic review.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2020
    Pooled it
  4. Pooled it
  5. A systematic review of factors affecting medication adherence among patients with osteoporosis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2018
    Pooled it
  6. Comparative gastrointestinal safety of bisphosphonates in primary osteoporosis: a network meta-analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Pooled it
  7. Trial
  8. Socioeconomic vulnerability and osteoporosis treatment disparities during COVID-19 lockdown among U.S. medicare enrollees who initiated romosozumab.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
    Article
  9. Article
  10. Observational
  11. Osteoporosis Medications Prevent Subsequent Fracture in Frail Older Adults.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Article
  12. Article
  13. Adherence and preference of intravenous zoledronic acid for osteoporosis versus other bisphosphonates.European journal of hospital pharmacy : science and practice · 2019
    Review
  14. Article
  15. Frequency of discontinuation of injectable osteoporosis therapies in US patients over 2 years.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2017
    Observational
  16. Review
  17. GRAND-4: the German retrospective analysis of long-term persistence in women with osteoporosis treated with bisphosphonates or denosumab.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Article
  18. Article
  19. Natural history, reasons for, and impact of low/non-adherence to medications for osteoporosis in a cohort of community-dwelling older women already established on medication: a 2-year follow-up study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2016
    Article
  20. Managing Osteoporosis in Patients on Long-Term Bisphosphonate Treatment: Report of a Task Force of the American Society for Bone and Mineral Research.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2016
    Review
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

5 authors at 1 institution in 1 country.

Jeffrey R CurtisUniversity of Alabama at Birmingham, AL, USA. jcurtis@uab.edu
Huifeng Yun
Robert Matthews
Kenneth G Saag
Elizabeth Delzell
University of Alabama at Birmingham · US

Funding

Deep South Musculoskeletal (DSM) CERTsU18HS016956 · AHRQ · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SAAG, KENNETH G · 2007 to 2010
$3.7M
Longitudinal Comparative Effectiveness & Safety of Biologics in AutoimmunityR01HS018517 · AHRQ · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CURTIS, JEFFREY R. · 2009 to 2013
$2.2M
Mid-Career Investigator Award (for Kenneth G. Saag, MD, MSc)K24AR052361 · NIAMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SAAG, KENNETH G · 2005 to 2014
$1.7M
Ethnic Differences in the Risk of Fracture and Vascular DiseaseK23AR053351 · NIAMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI CURTIS, JEFFREY R. · 2007 to 2011
$755k
AHRQ HHS R01 HS018517AHRQ HHS R01-HS018517AHRQ HHS U18 HS016956AHRQ HHS U18-HS016956NIAMS NIH HHS AR-052361NIAMS NIH HHS AR-053351NIAMS NIH HHS K23 AR053351NIAMS NIH HHS K24 AR052361
6 · The paper itself

Abstract

objectiveTo evaluate adherence to drug therapy among new users of zoledronate and intravenous (IV) ibandronate among US Medicare enrollees.

methodsWe used data from the Medicare 5% random sample to evaluate new users of IV zoledronate and IV ibandronate with continuous Part A and Part B fee-for-service coverage. The outcome was adherence as quantified by the proportion of days covered (PDC) measured continuously and dichotomously (≥ 80%). Followup time extended from 18-27 months for all individuals. Factors associated with low adherence to zoledronate were evaluated with logistic regression.

resultsWe identified 775 new users of zoledronate and 846 new users of IV ibandronate. For both drugs, 30-48% of the first infusions were given in an outpatient infusion center, not in a physician's office. The mean PDC for zoledronate users was 82%, which was greater than the mean PDC for the IV ibandronate users (58-62% depending on the time period; P < 0.0001). Approximately 30% of zoledronate users did not receive a second infusion. Factors associated with low adherence to zoledronate included older age and receipt of the first infusion in an outpatient infusion center rather than a physician's office.

conclusionLess frequently dosed IV bisphosphonates have not resolved the problem of suboptimal adherence with prescription osteoporosis medications. Interventions continue to be warranted to improve long-term adherence to osteoporosis treatments.

Indexed as

Drug MonitoringMedicareAgedAged, 80 and overBone Density Conservation AgentsDiphosphonatesDose-Response Relationship, DrugFemaleFollow-Up StudiesHumansIbandronic AcidImidazolesInfusions, IntravenousLogistic ModelsMaleOsteoporosisBone Density Conservation AgentsDiphosphonatesIbandronic AcidImidazolesZoledronic Acid

Identifiers

PMID22328117
PMCPMC3355221
OpenAlexW1514136181

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.