... Total 4, 795 4 ,60 4 recruitable ( 96. 0%) 3, 044 (66 .1% of recruitable; 63 .5% of eligible) Kelsall et al. 2004a All Australian veterans served in gulf 8/2/1990-9 /4/ 1991 Comparison group—randomly ... (Response Rate) Comments Total 2, 343 (by 6/ 1997 only mailed: 165 1) 1,3 96 ( 84 .6% of eligible mailed by 6/ 1997) 67 5 (48 .4% ; 40 .9% of total eligible); 45 4 eligible for clinical study (32.5%; ... summer 19 94- fall 1995 Germany: spring 1995 Total 64 5 44 4 (68 .8%) 343 (77.3%; 53.2% of eligible) participated 300 (67 .6% ; 46 . 5% of eligible) completed questionnaires 332 ( 74. 8%; 51.5%...