Thirteen of 18 clients showed progressions of two
points or more on the SQP after SFBT, as did 14 of
18 clients at follow-up. The differences in the scores
of the 18 clients were statistically significantly
higher after SFBT (mean progression +2.2 points;
z = -3.8; P < 0.01) and at follow-up (mean progression
+2.4 points; z = -3.7; P < 0.01). The remaining
clients showed less improvements on the SQP (after
SFBT, one client +0.5 point and four clients +1
point; at follow-up, one client zero points and three
clients +1 point).