Table 2

 Occupational exposure characteristics for study participants, Honolulu Heart Program, 1965–68.

PesticideSolventMetalManganeseMercury
n (%)n (%)n (%)n (%)n (%)
*Categories for mercury intensity scores are 0, 1–20, 21–30, ⩾31; categories for the four other intensity scores are 0, 1–39, 40–79, ⩾80. Intensity score  =  usual job exposure × years of exposure.
Usual job exposure
    None (0)3267 (92.9)1699 (48.3)2076 (59.0)2789 (82.3)3001 (85.4)
    Low (1)37 (1.1)1096 (31.2)1027 (29.2)396 (11.7)444 (12.6)
    Medium (2)11 (0.3)231 (6.6)212 (6.0)32 (0.9)71 (2.0)
    High (3)201 (5.7)490 (13.9)201 (5.7)170 (5.0)0 (0)
    Total35163516351633873516
Years of exposure
    03194 (90.7)1480 (42.1)1913 (54.4)2827 (80.3)2952 (83.8)
    1–1595 (2.7)378 (10.7)275 (7.8)127 (3.6)84 (2.4)
    16–30159 (4.5)912 (25.9)689 (19.6)351 (10.0)274 (7.8)
    ⩾3173 (2.1)749 (21.3)642 (18.2)215 (6.1)211 (6.0)
    Total35213519351935203521
Intensity score*
    Zero3266 (92.9)1699 (48.3)2076 (59.1)2788 (82.3)2891 (85.4)
    Low64 (1.8)1145 (32.6)1039 (29.6)392 (11.6)157 (4.6)
    Medium119 (3.4)484 (13.8)318 (9.1)147 (4.3)195 (5.8)
    High66 (1.9)187 (5.3)82 (2.3)59 (1.7)143 (4.2)
    Total35153515351533863386