HEMATOLOGIC OBSERVATIONS 49 Table 4.2.—Group I Rongelap Mean Blood Counts by Day and by Age P E.Dar W.B.C. (x 108) Ngurrorpwies (x 108) <8 >5 <3 >5 5 nen 9.0 49 &2 62 6.4 wee 47 cee 12_._.-2.-2----.--- 5.9 63 3.5 18__.---.--_-----22.2 2------------26__.-.-.--------30. 2222-222 +--+ 33__.-.-.--------39. 22-22-22 -43_ 222. 2.2-2-----47.2222. eee S1_.----..22-----56...--.---------63. .--2 22 e70. .2------------ne 185_...-.-..--.--400_..--.---2-2--Controls Group A../ 6.7 7.0 5.7 7.6 6.5 5.7 §.2 §.9 6.7 7.0 7.7 7.6 wee &5 10.1 13.2 7.2 7.4 6.1 7.8 6.2 5.5 5.2 5.8 5.6 690 60 65 wee 66 &1 9.7 34 43 30 40 31 3.0 20 26 26 3.5 3.9 3.8 woe 4.6 47 4.8 ne 15_.-------------- LyMrHocrtzs | PUATRLETS (x 108) <5 >8 OB eee 0.3 wee 0.1 ene 0.7 eee 3.9 21 17 aene cane --ee 22 54 19 19 47 5.0 3.9 53 3.8 3.3 26 3.3 3.5 3.5 3.6 40 eee 42 48 48 24 21 26 21 23 18 32 21 32 20 26 20 29 23 31°24 34 21 37 24 3.7 2.3 33 22 --3.6 22 46 28 7.4 41 35 23 18 3.4 26 0.5 L4 L1 08 wee 0.3 34 --25 6.7 95 16 #18 LS 22 2.2 10 0.8 0.5 O07 eee 0.6 #19 -1.6 28 4 32 41 The platelet count rose 27.1 213 217/30 23) Li L3- 2.8 19.1 2128/27 L7 16.8 146 152/19 20 13.2 129 109;';219 216 141° $123 118/15 09 17.9 166 1651/17 L6 26.5 220 224109 09 26.8 20.9 2.2; Li Lit 24.6 20.6 239/10 10 221 175 21..2/,25 16 weeceee eeee LT 12 23.1 182 202/05 09 ee 26.2 21.7 247) .-. --24.4 20.39 2322/14 11 26.6 19.5 27.6/0.7 13 41.2 25.8 365/20 20| CONTROLS GROUP A. MALE <1006) —+- «00 during the 5th and 6th weeks and reached the value noted for the initial counts on the 10th T [ ~ 30 70 percent of the control groups during theremainder of the initial observation period. No 4 q - F = 00 [ 100 o ] CONTROLS GROUP A.FEMALE, ALi. AGES(S91-— 1— | 1 r day. A second decrease in the platelet count (p<0.01) developed during the 7th and 8th month. At 12 months the counts were higher but still below the control range. The pattern of platelet counts in the male groups was remarkably similar to that noted for the females. Counts of the lower age group, males, were consistently higher than those of the adult group in absolute counts; but consistently lower as percent of control. 16 16 . of approximately 30 percent of control value additional recovery had occurred by the 6th >5 282 227 221/29 17) 24 19 weeks, and values remained at approximately <8 | owe ne ee ing this, the platelet count fell reaching a low during the 4th week. Au Ages (PY wane eee 26 21 >to (M) (x 108) weee weee 5.9 65/ <t0 (My i 22 wee 35 45 >8 (x 10%) 18 wee 66 7.1| <s Monocytes | Eosmorntirs (x 10) pratelets _ . | i—— | 7 | SITESTTMate mioni “A. \ ; | t ‘ Ne’ L 6a | | MALES>0U8) Orewies. That = OUD UO OT BS POST EXPOSURE Cay Freure 4.4—Serial platelet changes in those less than 10 years and greater than 10 years of age of Group T (Ronyelap).