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Table 9 Risk of lung cancer among KNR workers by year of first exposure and time since first exposure in Andersen et al. (1996) [4] and Grumsrud et al. (2003) [7] studiesa

From: New views on the hypothesis of respiratory cancer risk from soluble nickel exposure; and reconsideration of this risk's historical sources in nickel refineries

Year of first exposure Time since first exposure (yr)
  1–14 15+ Total
  Obs SIR 95% CI b Obs SIR 95% CI Obs SIR 95% CI
Andersen et al. (1996):         
1916–44 0 -   30 440 300–630 30 470 320–670
1945–55 7 220 90–450 95 330 270–400 102 320 270–390
1956–67 5 180 60–420 28 280 190–400 33 260 180–360
1968–83 6 230 80–490 11 410 200–730 17 320 180–510
Grimsrud et al. (2003):         
1910–29 NAc - - 17 480 280, 770 17 480 280, 760
1930–55 10 250 120, 460 160 270 230, 310 170 270 230, 310
1956–78 8 110 50, 220 67 250 190, 310 75 220 170, 270
1979–89 2 240 30, 880 3 580 120, 1690 5 370 120, 870
  1. a From Table three in Andersen et al. (1996) [4] and Table two in Grimsrud et al. (2003) [7]. b CI, confidence interval. c NA, not applicable.