Table 4.

Relationship Between Performance of a Key Role and Presence of Financial Ties

Performance of a Key Role	No. of Authors	Financial Tie
		Yes		No		P*
		No.	%	No.	%
All trials	2,927
Yes		666	35	1,215	65	< .0001
No		176	17	870	83
Industry-sponsored trials	1,518
Yes		532	55	432	45	< .0001
No		137	25	417	75
Non–industry-sponsored trials	1,409
Yes		134	15	783	85	< .0001
No		39	8	453	92

^*Unadjusted P values based on χ² analyses. Analyses do not account for clustering of authors within articles.