Table 3.: Covariance analysis of post-test hospital anxiety scores in control and intervention groups with pre-test control.

Source Dependent Variable (Sum of Squares) SS df MS F Sig.
Pre-test hospital anxiety Immediately after surgery 53.55 1 53.55 95.38 0.000
Two months after surgery 10.63 1 10.63 6.01 0.017
Four months after surgery 0.90 1 0.899 0.476 0.493
Intervention group Immediately after surgery 97.69 1 97.69 174.02 0.000
Two months after surgery 67.90 1 67.90 38.37 0.000
Four months after surgery 21.89 1 21.89 11.58 0.001
Error Immediately after surgery 39.86 71 0.561    
Two months after surgery 125.64 71 1.77
Four months after surgery 134.13 71 1.89
Total Immediately after surgery 8345 74      
Two months after surgery 8382 74
Four months after surgery 7758 74