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Table 1 Distribution of observed and expected numbers of incident cases of bladder cancer, Utah, 1973-2004

From: Spatio-temporal patterns of bladder cancer incidence in Utah (1973-2004) and their association with the presence of toxic release inventory sites

Period Min 1st Quartile Median Mean 3rd Quartile Max
  Observed numbers of incident cases of bladder cancer
1973-1976 0.00 0.00 0.00 0.89 1.00 8.00
1977-1980 0.00 0.00 1.00 1.11 2.00 9.00
1981-1984 0.00 0.00 1.00 1.13 2.00 8.00
1985-1988 0.00 0.00 1.00 1.24 2.00 14.00
1989-1992 0.00 0.00 1.00 1.35 2.00 11.00
1993-1996 0.00 0.00 1.00 1.79 3.00 10.00
1997-2000 0.00 1.00 2.00 2.16 3.00 15.00
2001-2004 0.00 1.00 2.00 2.19 3.00 12.00
Average 0.0 0.3 1.1 1.5 2.3 10.9
  Expected numbers of incident cases of bladder cancer
1973-1976 0.00 0.30 0.66 0.92 1.32 4.65
1977-1980 0.00 0.40 0.80 1.04 1.47 4.66
1981-1984 1.19 × 10-5 0.49 0.93 1.18 1.72 4.65
1985-1988 7.14 × 10-5 0.58 1.13 1.35 1.90 5.22
1989-1992 1.07 × 10-4 0.70 1.32 1.54 2.16 5.89
1993-1996 8.09 × 10-6 0.90 1.57 1.75 2.36 6.28
1997-2000 0.00 1.11 1.73 1.98 2.58 6.89
2001-2004 3.50 × 10-5 1.26 1.93 2.20 2.87 8.55
Average 0.0 0.7 1.3 1.5 2.0 5.8