Evidence map›Paper›PMID 32840486›Full record

ArticleJournal of medical Internet research2020

Online Japanese-Language Information on Lifestyle Factors Associated With Reduced Fertility: Content Analysis.

Rie Yokota, Tsuyoshi Okuhara, Haruka Ueno, Hiroko Okada, Emi Furukawa, Takahiro Kiuchi

Abstract read
In one paragraph

Article in Journal of medical Internet research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

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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

6 authors.

Rie YokotaDepartment of Health Communication, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0002-1973-2493
Tsuyoshi OkuharaDepartment of Health Communication, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0002-6251-3587
Haruka UenoDepartment of Health and Dietetics, Faculty of Health and Medical Science, Teikyo Heisei Unievrsity, Toshima-ku, Tokyo, Japan.ORCID 0000-0003-1326-9781
Hiroko OkadaDepartment of Health Communication, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0001-7877-9753
Emi FurukawaDepartment of Health Communication, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0002-1431-4786
Takahiro KiuchiDepartment of Health Communication, School of Public Health, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0001-5934-0681

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundApproximately one-third of Japanese couples currently worry or previously worried about infertility. To develop strategies for the primary prevention of infertility as a population approach, it is important for the general population to be knowledgeable about fertility and infertility. The internet may contribute to the dissemination of information regarding infertility and fertility. However, few studies have examined online information about fertility.

objectiveThis study aimed to quantitatively examine online Japanese-language information about lifestyle factors associated with reduced fertility.

methodsWe conducted online searches, using the 10 search terms with the highest numbers of searches that people hoping to conceive are likely to input in two major search engines in Japan (Google Japan and Yahoo! Japan). From the 2200 retrieved websites, 1181 duplicates and 500 websites unrelated to our objective were excluded, resulting in a final dataset of 519 websites. Coding guidelines were developed for the following lifestyle factors associated with reduced fertility: sexually transmitted diseases, psychological stress, cigarette smoking, alcohol use, nutrition and diet, physical activity and exercise, underweight, overweight and obesity, and environmental pollutants.

resultsIn terms of the website author's professional expertise, 69.6 % of the coding instances for the selected lifestyle factors were mentioned by hospitals, clinics, or the media, whereas only 1.7% were mentioned by laypersons. Psychological stress (20.1%) and sexually transmitted diseases (18.8%) were the most frequently mentioned lifestyle factors associated with reduced fertility. In contrast, cigarette smoking, alcohol use, nutrition and diet, physical activity and exercise, underweight, overweight and obesity, and environmental pollutants were mentioned relatively infrequently. The association between reduced fertility and sexually transmitted diseases was mentioned significantly more frequently by hospitals and clinics than by the media (P<.001). The association between reduced fertility and nutrition and diet was mentioned significantly more frequently by the media than by hospitals and clinics (P=.008). With regard to the sex of the target audience for the information, female-specific references to psychological stress, sexually transmitted diseases, nutrition and diet, underweight, physical activity and exercise, and overweight and obesity were significantly more frequent than were male-specific references to these lifestyle factors (psychological stress: P=.002, sexually transmitted diseases: P<.001, nutrition and diet: P<.001, underweight: P<.001, physical activity and exercise: P<.001, overweight and obesity: P<.001).

conclusionsOf the lifestyle factors known to be related to reduced fertility, cigarette smoking, alcohol use, and male-specific lifestyle factors are mentioned relatively infrequently in online information sources in Japan, and these factors should be discussed more in information published on websites.

Indexed as

FemaleFertilityHumansInfertilityInternetJapanLanguageLife StyleMaleStress, Psychologicalcontent analysisfertilityinfertilitylifestyle factoronline informationreproductive health

Identifiers

PMID32840486
PMCPMC7479583

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