Figure 1.

Subjective happiness score (left) and satisfaction scores (right) in patients stratified by age. (Left) Mean Subjective Happiness Score (SHS) of all participants (blue symbol) peaked at one month after surgery (^† p = 0.002, vs. baseline), but then decreased at three months (p = 0.999) and returned to baseline at six months (p = 0.999). SHS was greater in the older group (grey symbol) compared with the younger group (red symbol) at baseline (* p = 0.005) and at one month (* p < 0.001), but were similar at three months (p = 0.155) and at six months (p = 0.103). (Right) Mean satisfaction score of all participants (blue symbol) improved slightly but did not reach statistical significance. Satisfaction score was significantly worse in the older group (grey symbol) than the younger group (red symbol) at one month (* p = 0.003), at three months (* p = 0.017), but not at six months (p = 0.128).