Evidence map›Paper›PMID 26081676›Full record

ArticleAmerican journal of epidemiology2015

Efficient estimation of smooth distributions from coarsely grouped data.

Silvia Rizzi, Jutta Gampe, Paul H C Eilers

Erratum issuedAbstract read
In one paragraph

Article in American journal of epidemiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
–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

31 citing papers in PubMed.

  1. Article
  2. Article
  3. A Double Decomposition of Standard Deviation Below the Modal Age at Death and the Role of Causes of Death.European journal of population = Revue europeenne de demographie · 2026
    Article
  4. Article
  5. Article
  6. Competing risks models with two time scales.Statistical methods in medical research · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Life expectancy changes since COVID-19.Nature human behaviour · 2022
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Excess Mortality During the COVID-19 Pandemic in Guatemala.American journal of public health · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors.

Silvia Rizzi
Jutta Gampe
Paul H C Eilers

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ungrouping binned data can be desirable for many reasons: Bins can be too coarse to allow for accurate analysis; comparisons can be hindered when different grouping approaches are used in different histograms; and the last interval is often wide and open-ended and, thus, covers a lot of information in the tail area. Age group-specific disease incidence rates and abridged life tables are examples of binned data. We propose a versatile method for ungrouping histograms that assumes that only the underlying distribution is smooth. Because of this modest assumption, the approach is suitable for most applications. The method is based on the composite link model, with a penalty added to ensure the smoothness of the target distribution. Estimates are obtained by maximizing a penalized likelihood. This maximization is performed efficiently by a version of the iteratively reweighted least-squares algorithm. Optimal values of the smoothing parameter are chosen by minimizing Akaike's Information Criterion. We demonstrate the performance of this method in a simulation study and provide several examples that illustrate the approach. Wide, open-ended intervals can be handled properly. The method can be extended to the estimation of rates when both the event counts and the exposures to risk are grouped.

Indexed as

Epidemiologic MethodsStatistics as Topicgrouped datapenalized composite link modelsmoothingungrouping

Identifiers

PMID26081676
PMCPMC4493979

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.