Table 3.

Distribution of participants across different sites

Site	Primary	dft Mean ± SD	Permanent	DFT Mean ± SD
US sites
Colorado	26	1.42 ± 1.55	32	8.12 ± 3.87
Iowa	225	0.65 ± 1.48	358	3.51 ± 3.56
Pittsburgh	78	1.16 ± 2.54	147	7.48 ± 5.10
Texas	130	2.55 ± 3.21	196	4.74 ± 4.69
Puerto Rico	55	2.09 ± 2.80	121	8.53 ± 4.06
Total	514 (46.1%)	1.40 + 2.47	854 (33.2%)	5.36 ± 4.66
Non-U.S sites
Hungary	213	2.31 ± 2.94	565	6.45 ± 4.48
Argentina	106	2.46 ± 3.09	246	4.32 ± 3.95
Philippines	159	6.35 ± 4.86	563	4.20 ± 3.71
Guatemala	124	3.76 ± 3.34	342	3.26 ± 3.67
Total	478 (53.9%)	3.70 ± 4.00	1374 (66.8%)	4.78 ± 4.19
Total across all sites	1116	2.6 ± 3.6	2570	5 ± 4.3