Characteristic Study ID	Primary endpoint(s)a [time of measurement]	Secondary endpoint(s)a [time of measurement]	Other endpoint(s)a [time of measurement]
Liu 2008	‐	‐	Uric acid (0, 4 wk), triglycerides (0, 4 wk), adverse effects (0, 4 wk)
Miao 2008	‐	‐	Triglycerides (‐1, 7 wk), adverse effects (‐1, 7 wk)
Tan 2010	‐	‐	Symptoms (0, 30 d), uric acid (0, 30 d), triglycerides (0, 4 wk), adverse effects (0, 30 d)
Footnotes aPrimary or secondary endpoint(s) refer to verbatim statements in the publication, other endpoints relate to outcomes which were not specified as 'primary' or 'secondary' outcomes in the publication "‐" denotes not reported; d: days; wk: weeks