How about the reporting quality of case reports in nursing field?

Table 1 The results of general characteristics

Item	Number of case reports (%, 95%CI)
Year of publication
Before CARE (1984.1-2013.7)	150 (81.5, 75.1-86.9)
After CARE (2013.8-2017.12)	34 (18.5, 13.1-24.9)
Journal’s IF
IF < 1.8	26 (14.1, 9.4-20.0)
IF ≥ 1.8	158 (85.9, 80.0-90.6)
Different countries
Developing countries	14 (7.6, 4.2-12.4)
Developed countries	170 (92.4, 87.6-95.8)
Funding sources
With fundings	10 (5.4, 2.6-9.8)
No fundings	174 (94.6, 90.2-97.4)
Number of authors
One author	61 (33.2, 26.4-40.5)
Two to four authors	101 (54.9, 47.4-62.2)
More than four authors	22 (12.0, 7.6-17.5)
Number of author’s affiliation
One affiliation	115 (62.5, 55.1-69.5)
More than one affiliation	69 (37.5, 30.5-44.9)
Number of pages
One page	1 (0.5, 0.0-3.0)
Two to four pages	87 (47.3, 39.9-54.8)
More than four pages	96 (52.2, 44.7-59.6)

IF: Impact factor; CI: Confidence interval; OR: Odds ratio. IF according to the website http: //www.letpub.com.cn/index.php?page=journalapp; Number of author’s affiliation included all the authors’ affiliations.