Table 5. Factors associated with the standard CONSORT.

Variables	Univariable analysis	P	Multivariable analysis	P
	Coefficient (95% CI)		Coefficient (95% CI)
The main effect of the primary outcome
significant vs non-significant[ref]	0.48 (-0.64 to 1.60)	0.40	-0.15 (-0.97 to 0.67)	0. 72
Language
English vs Chinese[ref]	8.55 (7.41 to 9.69)	<0.001	7.00 (5.77 to 8.24)	<0.001
Author’s affiliation to statistics or epidemiology department
yes versus no[ref]	10.72 (8.46 to 12.97)	<0.001	4.05 (1.92 to 6.18)	<0.001
Center
multicenter vs single center[ref]	5.67 (3.87 to 7.47)	<0.001	3.47 (2.02 to 4.92)	<0.001
Sample size
>80 vs ≤80[ref]	0.15 (-0.96 to 1.26)	0.79	-0.003 (0.84 to 0.84)	0.99

Note: _[ref]: reference level