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