Table 1

Characteristics of Painesville, Ohio chromate production workers (n=482) and subset dead from lung cancer (n=51)

Study cohortWorkers dead from lung cancer
n%n%
Year of birth
    1877–189927600
    1900–19095411714
    1910–1919149312345
    1920–1929172351733
    1930–1939621348
    1940–195918400
Year first exposed
    1940–194490191835
    1945–1949106221224
    1950–195487181224
    1955–1959531136
    1960–1964781648
    1965–1972681424
Length of employment (y)
    1–4217451121
    5–911023918
    10–197616918
    20–3279162243
Mean (SD)RangeMean (SD)Range
Cumulative hexavalent exposure (mg/m3-y)1.58 (2.5)0.003–233.28 (4.59)0.06–23
Age at hire (y)34.1 (11.0)16.2–66.830.9 (9.6)18.0–60.1
Length of follow up (y)30.4 (14.4)1.2–58.431.6 (11.8)7.2–52.1