The Use of Multiple Primary Outcomes in Randomized Controlled Trials of Chinese Herbal Medicine

Table 2

The primary outcome reporting percentage with the first author’s country.

Country of first author	No. of RCTs	No. of RCTs that reported primary outcome	No. of RCTs that adopted multiple primary outcomes
Mainland China	197	100 (55.8%)	37 (33.6%)
Hong Kong	11	10 (90.9%)	1 (10.0%)
Taiwan	8	6 (75.0%)	2 (33.3%)
Other countries	11	9 (81.8%)	2 (22.2%)
Total	227	135 (59.5%)	42 (31.1%)
P value		0.004	0.239