Digital cognitive behavioral therapy as a novel treatment for insomnia

Figure 3 Line chart comparison of changes. A: In the Pittsburgh sleep quality index between groups. Scores of Pittsburgh sleep quality index over the treatment period; B: In the insomnia severity index scale between groups. Scores of insomnia severity index over the treatment period; C: In the depression scale of the depression anxiety and stress scale (DASS-21) between groups. Scores of the depression scale of the DASS-21 over the treatment period; D: In the anxiety scale of the DASS-21 between groups. Scores of the anxiety scale of the DASS-21 over the treatment period; E: In the stress scale of the DASS-21 between groups. Scores of the stress scale of the DASS-21 over the treatment period. PSQI: Pittsburgh sleep quality index; ISI: Insomnia severity index; DASS-21: Depression anxiety and stress scale.