The format has been condensed to reduce the publication length.
Additionally, we were limited to the number of units that we could fully report on due to limitations in publication length.
In the second phase, we analysed news stories classified as having a main focus on PHC for basic characteristics like newspaper name, geographical area of circulation, type of news story, year of publication, length of news story, and news focus.
There was no limitation on the year of publication or length of follow-up.
This record includes the following: sex; age range; race; smoking status; adjustment factors; type of lung cancer; source publication and length of follow-up.
This finding persisted in the various sensitivity analyses undertaken including parity, publication date, length of follow-up, indication for mode of delivery, cohort size and by definition of sub-fertility used.
A meta-regression was performed to investigate the effect of study design (longitudinal vs cross-sectional), mean age, mean PM2.5 concentration, scale of HRV (log vs linear), percentage of men, year of publication and length of analysed ECG recordings on the combined effect of PM2.5 on HRV.
We excluded field reports, case series, case reports, studies without any control group, abstracts which proceeded a full length publication, translations of already published manuscripts, double publication of similar data (exception is the presentation of further data), internal reports and unpublished manuscripts.
We conducted t-tests to compare documents containing information about each feasibility criteria to those without information on three document characteristics (publication year, page length, study quality) in order to determine whether document length, publication year and study quality (where appropriate) were related to the presence of feasibility information at the document level (n = 121).
Independent variables were the publication date, page length, type of journal, publishing house and CONSORT score.
We also piloted the survey with 8 physicians who had editorial and publication experience for length and readability.
