Time-Series Analysis
Similar to the procedure of a recent
analysis,17we then conducted time-series analyses to explore any time-based trends
in the number of articles published per year for each coded category.
A preliminary visual inspection of all the time-series plots identified
outstanding trends for further investigation. We used the Chow test to
test for the presence of structural break points in time series
data.18Segmented regression of interrupted time series analysis with AR(2)
residuals were used to examine the sudden and gradual change in the
proportions of publications of interest at given time
points.19