Months Estimate Std. Error DF t value Pr > |t|
  0 to 4 -8.7379 4.9615 44 -1.76 0.0852
Physical Function 0 to 6 -10.8877 4.9615 44 -2.19 0.0335
  4 to 6 -2.1498 4.9615 44 -0.43 0.6669
  0 to 4 2.2826 5.1966 44 0.44 0.6626
Pain 0 to 6 9.5652 5.1966 44 1.84 0.0724
  4 to 6 7.2826 5.1966 44 1.40 0.1681
Table 4: Quality of life – Differences of Least Squares Means.