Expected number of events (E) | |||||||
---|---|---|---|---|---|---|---|
5 | 10 | 50 | 100 | 250 | 500 | 1000 | |
Probability of observed SMR falling above upper limit=0.5 | |||||||
95% limit | 2.13 | 1.77 | 1.29 | 1.21 | 1.13 | 1.09 | 1.06 |
99.8% limit | 2.73 | 2.17 | 1.47 | 1.33 | 1.20 | 1.14 | 1.10 |
Probability of observed SMR falling above upper limit=0.8 | |||||||
95% limit | 2.73 | 2.14 | 1.43 | 1.30 | 1.18 | 1.13 | 1.09 |
99.8% limit | 3.40 | 2.58 | 1.62 | 1.43 | 1.26 | 1.18 | 1.13 |
Probability of observed SMR falling above upper limit=0.9 | |||||||
95% limit | 3.08 | 2.36 | 1.51 | 1.35 | 1.21 | 1.15 | 1.11 |
99.8% limit | 3.79 | 2.82 | 1.70 | 1.48 | 1.29 | 1.21 | 1.14 |
SMR, standardised mortality ratio.