Evidence map›Paper›PMID 35603042›Full record

ArticleJournal of the Royal Statistical Society. Series A, (Statistics in Society)2022

Power law in COVID-19 cases in China.

Behzod B Ahundjanov, Sherzod B Akhundjanov, Botir B Okhunjanov

Abstract read
In one paragraph

Article in Journal of the Royal Statistical Society. Series A, (Statistics in Society), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Forecasting the Monkeypox Outbreak Using Limited Data: A Case Study of Thailand.Interdisciplinary perspectives on infectious diseases · 2025
    Article
  4. Article
  5. Article
  6. The distribution of COVID-19 mortality.Infectious Disease Modelling · 2022
    Article
  7. Article
  8. Power law in COVID-19 cases in China.Journal of the Royal Statistical Society. Series A, (Statistics in Society) · 2022
    Article
  9. Article
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

3 authors.

Behzod B AhundjanovDepartment of Economics University of Illionois Chicago Illinois USA.
Sherzod B AkhundjanovDepartment of Applied Economics Utah State University Logan Utah USA.ORCID https://orcid.org/0000-0003-3372-3574
Botir B OkhunjanovSchool of Economic Sciences and Department of Mathematics and Statistics Washington State University Pullman Washington USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The novel coronavirus (COVID-19) was first identified in China in December 2019. Within a short period of time, the infectious disease has spread far and wide. This study focuses on the distribution of COVID-19 confirmed cases in China-the original epicentre of the outbreak. We show that the upper tail of COVID-19 cases in Chinese cities is well described by a power law distribution, with exponent around one in the early phases of the outbreak (when the number of cases was growing rapidly) and less than one thereafter. This finding is significant because it implies that (i) COVID-19 cases in China is heavy tailed and disperse; (ii) a few cities account for a disproportionate share of COVID-19 cases; and (iii) the distribution generally has no finite mean or variance. We find that a proportionate random growth model predicated by Gibrat's law offers a plausible explanation for the emergence of a power law in the distribution of COVID-19 cases in Chinese cities in the early phases of the outbreak.

Indexed as

coronavirusCOVID‐19Gibrat's lawheavy tailednessPareto distributionpower lawproportionate random growth

Identifiers

PMID35603042
PMCPMC9115516

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.