Evidence map›Paper›PMID 33627079›Full record

ArticleBMC infectious diseases2021

Clinical characteristics of coronavirus disease 2019 (COVID-19) in patients out of Wuhan from China: a case control study.

Hua Zhang, Feng Du, Xiao-Jun Cao, Xia-Long Feng, He-Ping Zhang, Zheng-Xia Wu, Bao-Feng Wang, Hong-Juan Zhang, Rui Liu, Jian-Jun Yang and 3 more

Abstract read
In one paragraph

Article in BMC infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
–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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Frontiers in immunology · 2026
    Article
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  10. Review
  11. Animal models for COVID-19: advances, gaps and perspectives.Signal transduction and targeted therapy · 2022
    Review
  12. Comparison of laboratory parameters in mildJournal of thoracic disease · 2022
    Article
  13. Article
  14. Article
  15. Review
  16. Article
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  18. Article
  19. 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

13 authors.

Hua Zhang *Present Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Feng DuDepartment of Infectious Diseases, Baoji Central Hospital, Baoji, 721008, Shaanxi, China.
Xiao-Jun CaoPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Xia-Long FengDepartment of Cardiovascular Medicine, Baoji Central Hospital, Baoji, 721008, Shaanxi, China.
He-Ping ZhangPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Zheng-Xia WuPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Bao-Feng WangPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Hong-Juan ZhangPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Rui LiuPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China.
Jian-Jun YangDepartment of Infectious Diseases, Baoji Central Hospital, Baoji, 721008, Shaanxi, China.
Bo NingDepartment of Infectious Diseases, Baoji Central Hospital, Baoji, 721008, Shaanxi, China.
Kai ChenPresent Address: Department of Pulmonary and Critical Care Medicine, Baoji Central Hospital, No. 8 Jiangtan Rd, Baoji, 721008, Shaanxi, China. chenkailiyajie@163.com.
Zhen-Peng Huang *Present Address: Guangzhou Institute of Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, No. 78 Hengzhigang, Guangzhou, 510095, Guangdong, China. huang_zhenpeng@126.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA large-scale global outbreak of coronavirus disease-19 (COVID-19) out of Wuhan, from China, occurred in January 2020. To examine the clinical characteristics of COVID-19 in infected patients out of Wuhan, from China.

methodsThirteen patients were confirmed to be infected with novel coronavirus-2019 (2019-nCoV) between January 27 and February 8, 2020, in Baoji city, Shannxi, northwestern China. Epidemiological and clinical information, and computed to morphology imaging data from all COVID-19 patients were collected; cases were divided into two groups according to the severity of infection (mild or severe).

resultsNine (9/13) COVID-19 patients exhibited mild disease severity, and defined as second-generation human-to-human transmission cases. Most patients (11/13) had a history of travel to or from Wuhan. There were no differences in sex and age between the mild and severe cases (all P > 0.05). A moderate degree of fever (11/13), cough (13/13), and fatigue (8/13) were common symptoms; however, there was no statistical difference between mild and severe cases in this regard (all P > 0.05). Oxyhemoglobin saturation and oxygenation index decreased, and C-reactive protein (CRP) and serum amyloid A (SAA) levels were elevated in all patients with COVID-19 infection, with statistically significant differences between those with severe disease and mild infection (all P < 0.05). Twelve of 13 COVID-19 patients exhibited changes in chest CT imaging features, and time course changes were different between mild and severe cases (all P < 0.05).

conclusionMost cases of COVID-19 infection were second-generation human-to-human transmissions from Wuhan and were mild in severity. The clinical characteristics of COVID-19 varied. Oxyhemoglobin saturation, oxygenation index, CRP and SAA levels, and CT features were reliable parameters to evaluate the severity of COVID-19 infection. However, a few patients with mild COVID-19 disease lacked typical characteristics such as fever and changes in CT imaging features.

Indexed as

SARS-CoV-2AdultAgedCase-Control StudiesChinaCOVID-19C-Reactive ProteinFemaleHumansMaleMiddle AgedSerum Amyloid A ProteinTomography, X-Ray ComputedC-Reactive ProteinSerum Amyloid A Protein2019-nCoVChinaClinical characteristicsCOVID-19Wuhan

Identifiers

PMID33627079
PMCPMC7903394

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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.