CSAD and generalized anxiety disorder: Symptom improvement rates were high: In the PHF+PCAP group, 85% (25/29) showed ≥5-point decreases in PHQ-9 scores, 68% (20/29) had ≥6-point decreases in Generalized Anxiety Disorder-7 Scale scores, and 93% (27/29) had ≥5-point decreases in PCL-6 scores.