Extension of the modified Poisson regression model to prospective studies with correlated binary data

Zou, Guangyong; Donner, Allan

doi:10.1177/0962280211427759

Cited by 568 publications

(480 citation statements)

References 31 publications

(49 reference statements)

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“…The association of the STRIP study group with the risk of having low ideal cardiovascular health score was studied with a modified Poisson regression model 23,24 with generalized estimating equation estimation for repeated measures (risk ratios [RRs] calculated for STRIP control versus intervention group, adjusted for age and sex). Similar analyses were used to study the association of sex and STRIP study group with the individual ideal metrics.…”

Section: Statistical Analysesmentioning

confidence: 99%

Ideal Cardiovascular Health in Adolescence

et al. 2013

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Background— In the Special Turku Coronary Risk Factor Intervention Project for Children (STRIP) study, repeated dietary counseling introduced in infancy and maintained until 20 years of age has led to lower intakes of saturated fat and serum low-density lipoprotein cholesterol. In this study, we examined prospectively the intervention effects on the ideal cardiovascular health concept recently described by the American Heart Association. Additionally, we investigated the association between the concept and vascular intima-media thickness and elasticity in adolescence. Methods and Results— In adolescents participating in the longitudinal, randomized, atherosclerosis-prevention STRIP study, complete data on ideal cardiovascular health metrics were available at 15 (n=394), 17 (n=376), and 19 (n=298) years of age. Aortic intima-media thickness and elasticity were measured with ultrasonography at the same ages. None of the adolescents had all 7 ideal cardiovascular health metrics. At least 5 ideal metrics was found in 60.2%, 45.5%, and 34.2% of the adolescents at 15, 17, and 19 years of age, respectively. Adolescents in the control group had an increased risk of low ideal cardiovascular health (≤3 metrics) compared with the intervention adolescents (risk ratio=1.35; 95% confidence interval=1.04–1.77). The number of ideal cardiovascular health metrics was inversely associated with aortic intima-media thickness ( P <0.0001) and directly associated with elasticity ( P =0.045). The risk of having high intima-media thickness (>85th percentile) was nearly 2-fold in adolescents with a low number of metrics (≤3) compared with those with a higher score (risk ratio=1.78; 95% confidence interval=1.31–2.43). Conclusions— Ideal cardiovascular health as determined by the AHA can be promoted in adolescents. The ideal cardiovascular health concept is beneficially associated with vascular health already in adolescence, supporting the relevance of targeting these metrics as part of primordial prevention. Clinical Trial Registration— URL: http://www.clinicaltrials.gov . Unique identifier: NCT00223600

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Section: Statistical Analysesmentioning

confidence: 99%

Ideal Cardiovascular Health in Adolescence

et al. 2013

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“…30, 31 Both descriptive and multivariate analyses addressed complex survey design by means of sample weights and design effects with the use of Taylor series approximations. We also accounted for clustering at the provider level.…”

Section: Analysesmentioning

confidence: 99%

Racial Variation in the Uptake of Oncotype DX Testing for Early-Stage Breast Cancer

Roberts

Weinberger

Dusetzina

et al. 2016

JCO

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Purpose Oncotype DX (ODX) is a tumor gene-profiling test that aids in adjuvant chemotherapy decision-making. ODX has the potential to improve quality of care; however, if not equally accessible across racial groups, disparities in cancer care quality may persist or worsen. We examined racial disparities in ODX testing uptake. Methods We used data from the Carolina Breast Cancer Study, phase III, a longitudinal, population-based study of 2,998 North Carolina women who received a diagnosis of breast cancer between 2008 and 2014. Our primary analysis used modified Poisson regression to determine the association between race and whether ODX testing was ordered among two strata: node-negative and node-positive breast cancer. Results A total of 1,468 women with estrogen receptor–positive, human epidermal growth factor receptor-2–negative, stage I or II breast cancer met inclusion criteria. Black patients had higher-grade and larger tumors, more comorbidities, younger age at diagnosis, and lower socioeconomic status than non-black women. Overall, 42% of women had ODX test results in their pathology reports. Compared with those who did not receive ODX testing, women who received ODX testing tended to be younger and have medium tumor size and grade. Our regression analyses indicated no racial disparities in ODX uptake among node-negative patients. However, racial differences were detected among node-positive patients, with black patients being 46% less likely to receive ODX testing than non-black women (adjusted relative risk, 0.54; 95% CI, 0.35 to 0.84; P = .006). Conclusion We did not find racial disparities in ODX testing for node-negative patients for whom ODX testing is guideline recommended and widely covered by insurers. However, our findings suggest that a newer, non–guideline-concordant application of ODX testing for node-positive breast cancer was accessed less by black women than by non-black women, reflecting more guideline concordant care among black women.

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“…428 Investigations of the intervention effects on these outcomes at 3 and 6 months were conducted with an extension of this model accounting for the clustering of outcomes by patients. 429 For the TKR trial, ICOAP and WOMAC stiffness and function scores at 12 months post operation were modelled with linear regression and adequate transformation of the outcomes, when required. Investigations of the intervention effects on these outcomes at 3 and 6 months after surgery were conducted with a linear mixed model.…”

Section: Secondary Analysesmentioning

confidence: 99%

Improving patients’ experience and outcome of total joint replacement: the RESTORE programme

Blom

Artz

Beswick

et al. 2016

Programme Grants Appl Res

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms PROGRAMME GRANTS FOR APPLIED RESEARCH VOLUME 4 ISSUE 12 AUGUST 2016 ISSN 2050 DOI 10.3310/pgfar04120Improving patients' experience and outcome of total joint replacement: the RESTORE programme Ashley W Blom, Neil Artz, Andrew D Beswick, Amanda Burston, Paul Dieppe, Karen T Elvers, Rachael Gooberman-Hill, Jeremy Horwood, Paul Jepson, Emma Johnson, Erik Lenguerrand, Elsa Marques, Sian Noble, Mark Pyke, Catherine Sackley, Gina Sands, Adrian Sayers, Victoria Wells and Vikki Wylde Improving patients' experience and outcome of total joint replacement: the RESTORE programme ISSN 2050-4330 (Online) This journal is a member of and subscribes to the principles of the Committee on Publication Ethics (COPE) (www.publicationethics.org/).Editorial contact: nihredit@southampton.ac.ukThe full PGfAR archive is freely available to view online at www.journalslibrary.nihr.ac.uk/pgfar. Print-on-demand copies can be purchased from the report pages of the NIHR Journals Library website: www.journalslibrary.nihr.ac.uk Criteria for inclusion in the Programme Grants for Applied Research journalReports are published in Programme Grants for Applied Research (PGfAR) if (1) they have resulted from work for the PGfAR programme, and (2) they are of a sufficiently high scientific quality as assessed by the reviewers and editors. Programme Grants for Applied Research programmeThe Programme Grants for Applied Research (PGfAR) programme, part of the National Institute for Health Research (NIHR), was set up in 2006 to produce independent research findings that will have practical application for the benefit of patients and the NHS in the relatively near future. The Programme is managed by the NIHR Central Commissioning Facility (CCF) with strategic input from the Programme Director.The programme is a national response mode funding scheme that aims to provide evidence to improve health outcomes in England through promotion of health, prevention of ill health, and optimal disease management (including safety and quality), with particular emphasis on conditions causing significant disease burden.For more information about the PGfAR programme please visit the website: http://www.nihr.ac.uk/funding/programme-grants-forapplied-research.htm This reportThe research reported in this issue of the journal was funded by PGfAR as project number RP-PG-0407-10070. The contractual start date was in December 2008. The final report began editorial review in September 2014 and was accepted for publication in August 2015. As the funder, the PGfAR programme agreed the research questions and study designs in advance with the investigators. The authors have been wholly responsible for all data collection, analysis and interpretation, and for writing up their work. The PGfAR editors and production house have tried to ensure the accurac...

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Extension of the modified Poisson regression model to prospective studies with correlated binary data

Cited by 568 publications

References 31 publications

Ideal Cardiovascular Health in Adolescence

Ideal Cardiovascular Health in Adolescence

Racial Variation in the Uptake of Oncotype DX Testing for Early-Stage Breast Cancer

Improving patients’ experience and outcome of total joint replacement: the RESTORE programme

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