oT 20710 pa ne TT @ UNEXPOSED 9 COMBINED ! o EXPOSED (0 — —CURVE FOR AMERICANS (DUANE ®*) 120,73%* y2 - 36.74 43.312- 0.028! teorsr —105 ! 4a 50 os5 9° >. ai % - 2 re Bw a © — 7.0 4eorios 4 . 60r1 79 wa had) \ 2 WY @ UNEXPOSED 9 COMBINED © EXPOSED r#9 6905** ao— y? 21.543 z - . 13.5 | — 20/152 1.543, + 02891 z || ®*® CORRELATION WITH AGE 390-- SIGNIFICANT AT ! 100s or 40 30 | = 50 90 + 1% LEVEL ; 60 AGE 80 90 20 19 . rot t aor ® UNEXPOSED 2 EXPOSED 4 30 Figure 38. Visual acuity (1964). Oo a ae AGE “~~ — SIGNIFICANT AT 1% LEVEL 100 20/200 |! ge \ # ® CORRELATION WITH | 70 | | | 9 S ° Lt ° ase 4 7 2 80 lL 5 r 20a 90 Figure 39. Accommodation (196-4). TTT 3 " 0; Tr | Oo COMBINED : | *:9.6653%* | y= 38.266 - 1 229% +0 02374? r 90"~ a EXPOSED T T_ T . © COMBINED r=0,5507 *"* | 20-7 7 ® UNEXPOSED ye-1677 + 0.743 1 - Om H ' ~+{i2 175 30 —- PERCENT aor w Ww °o a 21.5 wi 50 2 9 o 60°- ro bh z wi vo : 147 a ao ! 3 — ite EC 30 _ Loo: © ™ CORRELATION WITH OGE SIGNIFICANT AT 1% LEVEL Cee 30 40 50 . 60 AGE ‘ ‘ 70 i gO Figure 40. Hearing (average decibel loss). i 90 au 1e _ oO! ** CORRELATION WITH AGE SIGNIFICANT AT 1% LEVEL | 30 id a0 50 \ 60 AGE _! 70 ! 80 Figure 41. Systolic blood pressure. | 30 30 SYSTOLIC PRESSURE (mm) PERCENT aor DIOP TERS 3G-