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Table 1 Summary characteristics

From: Incidence of cancer among licenced commercial pilots flying North Atlantic routes

  Icelandair pilots Other pilots All pilots
Number 286 265 551
Person-years 8514 8993 17,507
Year of birth, median (range) 1959 (1922–1978) 1946 (1901–1979) 1951
Year of license, median (range) 1987 (1944–2000) 1970 (1935–2004) 1977
Years of employment, median (range) 16 (1–43) NA NA
Cumulative air hours, median (range) 7961 (58–29,966) NA NA
Cumulative mSv, median (range) 22.55 (0.28–83.20) NA NA
Cumulative mSv up to age of 40 years, median (range) 5.80 (0–17.17) NA NA
  1. Abbreviations: MilliSievert (mSv), and not available (NA)