Table 2

Time between registration on Clinicaltrials.gov website and study start, by year and source of funding

Year registered	Source of funding	Number of trials registered in year*	Mean delay from start to registration (days)	SD (days)
1999	Industry only	83	−579.6	514.1
	Non-industry only	2043	−1238.2	1406.7
	Blended	18	−274.5	1385.9
	Total	2144	−1204.7	1385.9
2000	Industry only	68	−193.5	178.5
	Non-industry only	918	−255.1	749.2
	Blended	22	−373.2	542.4
	Total	1008	−253.5	721.1
2001	Industry only	85	−173.4	186.8
	Non-industry only	960	−364.8	694.8
	Blended	18	−239.2	267.2
	Total	1063	−347.4	665.4
2002	Industry only	341	−181.9	321.6
	Non-industry only	765	−191.9	582.6
	Blended	58	−347.8	530.4
	Total	1164	−196.8	517.9
2003	Industry only	332	−134	340.3
	Non-industry only	1001	−246.7	722.2
	Blended	42	−170.4	382.9
	Total	1375	−217.2	643.6
2004	Industry only	415	−120.3	245.7
	Non-industry only	872	−167.7	449.6
	Blended	36	−310.3	677.7
	Total	1323	−156.7	406.7
2005	Industry only	1704	−348.5	556.9
	Non-industry only	3539	−617.2	964.4
	Blended	899	−563.1	704.1
	Total	6142	−534.7	841.4
2006	Industry only	1643	−183.9	531.8
	Non-industry only	3084	−485.2	971.8
	Blended	735	−281.1	624
	Total	5462	−367.1	830.4
2007	Industry only	1897	−168.7	502.4
	Non-industry only	3739	−557.2	1032.7
	Blended	1007	−358.5	675.4
	Total	6643	−416.1	877.8
2008	Industry only	3001	−335.1	715
	Non-industry only	4321	−383.4	803.8
	Blended	1067	−265.9	748.2
	Total	8389	−351.2	767
2009	Industry only	2354	−194.9	626.7
	Non-industry only	4290	−316.6	840.8
	Blended	1035	−145.2	497.4
	Total	7679	−256.2	743.9
2010	Industry only	2201	−94.4	489.2
	Non-industry only	4076	−238.9	719.5
	Blended	937	−146.5	532.5
	Total	7214	−182.8	637.6
2011	Industry only	924	−139.3	556.7
	Non-industry only	1725	−255.5	762.1
	Blended	364	−76.2	345.4
	Total	3013	−198.2	668.2
Total	Industry only	14965	−215.9	576.5
	Non-industry only	29290	−441.9	929.3
	Blended	6220	−277.1	636.9
	Total	52619*	−321.8	763.7

*Total is limited to studies that indicated their funding source.