Evidence map›Paper›PMID 28966720›Full record

ArticleStatistics in biopharmaceutical research2011

Confidence intervals for the difference of median failure times applied to censored tumor growth delay data.

Jianrong Wu

Open access · greenAbstract read
In one paragraph

Article in Statistics in biopharmaceutical research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 45% 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Treatment Effect Measures for Culture Conversion Endpoints in Phase IIb Tuberculosis Treatment Trials.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021
    Pooled it
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

1 author at 1 institution in 1 country.

Jianrong WuDepartment of Biostatistics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA.
St. Jude Children's Research Hospital · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI SUZANNE J. BAKER · 1985 to 2026
$166.9M
NCI NIH HHS N01 CM042216NCI NIH HHS P30 CA021765
6 · The paper itself

Abstract

In tumor xenograft experiments, tumor response to the anti-cancer agents is often assessed by tumor growth delay, the difference in median tumor quadrupling times between treatment and control. Tumor quadrupling time is often subjected to right censoring because death of the experimental mice or limitations of the follow-up period. In the literature, tumor growth delay is simply reported without a standard error or confidence interval being given, which ignores the noise in the experimental data. Here, we present seven confidence intervals for the difference of medians in a general right-censored failure time framework. Simulation studies are conducted to compare the coverage probability of these intervals for small samples. The proposed intervals are applied to tumor growth delay data from an actual tumor xenograft experiment.

Indexed as

BootstrapConfidence intervalDensity estimationRight censoringTumor growth delay

Identifiers

PMID28966720
PMCPMC5621763
OpenAlexW1986785854

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.