Annual comparisons | Unadjusted MSM tests | Adjusteda MSM tests | ||||||
---|---|---|---|---|---|---|---|---|
Mean | Difference | % change | p-value | Mean | Difference | % change | p-value | |
May-Aug ′08 | 137.5 | 227.3 | ||||||
10.3 | 7.5% | 0.31 | 13.8 | 6.1% | 0.21 | |||
May-Aug ′09 | 147.8 | 241.0 | ||||||
32.3 | 21.8% | 0.072 | 30.8 | 12.8% | 0.094 | |||
May-Aug ′10 | 180.0 | 271.8 | ||||||
4.0 | 2.2% | 0.822 | 19.3 | 7.1% | 0.34 | |||
May-Aug ′11 | 184.0 | 291.0 |