Table 22Subgroup analysis for CBT versus waitlist control

Working-age adultsOlder adultsIndividual sessionsGroup sessions
No. trials (total participants)8 RCTs (N = 364)2 RCTs (N = 129)8 RCTs (N = 352)2 RCTs (N = 91)
Study ID
Benefits
Anxiety (self-rated)SMD = −0.59 (−0.85, −0.33)
K = 7, N = 264
Quality: high
SMD = −0.72 (−1.12, 0.32)
K = 2, N = 103
Quality: high
SMD = −0.56 (−0.80, −0.32)
K = 7, N = 276
Quality: high
SMD = −0.83 (−1.26, −0.39)
K = 2, N = 91
Quality: moderate
Anxiety (clinician-rated)SMD = −1.14 (−1.46, −0.83)
K = 8, N = 340
Quality: moderate
SMD = −1.09 (−1.58, −0.59)
K = 2, N = 103
Quality: high
SMD = −1.08 (−1.38, −0.77)
K = 8, N = 352
Quality: moderate
SMD = −1.32 (−1.78, −0.86)
K = 2, N = 91
Quality: moderate
Depression (self-rated)SMD = −0.73 (−1.13, −0.33)
K = 7, N = 267
Quality: moderate
SMD = −0.84 (−1.25, −0.44)
K = 2, N = 103
Quality: high
SMD = −0.70 (−1.08, −0.32)
K = 7, N = 279
Quality: moderate
SMD = −0.96 (−1.40, −0.52)
K = 2, N = 91
Quality: moderate
Depression (clinician-rated)SMD = −0.87 (−1.63, −0.11)
K = 2, N = 88
Quality: very low
SMD = −0.59 (−0.99, −0.19)
K = 2, N = 103
Quality: moderate
SMD = −0.84 (−1.26, −0.42)
K = 3, N = 152
Quality: low
SMD = −0.40 (−1.04, 0.23)
K = 1, N = 39
Quality: low
WorrySMD = −1.15 (−1.81, −0.5)
K = 6, N = 232
Quality: low
SMD = 0.89 (−1.33, −0.46)
K = 2, N = 103
Quality: high
SMD = −1.16 (−1.81, −0.52)
K = 6, N = 244
Quality: low
SMD = −0.85 (−1.28, −0.41)
K = 2, N = 91
Quality: moderate
Non-responseRR = 0.6 (0.37, 0.97)
K = 3, N = 90
Quality: low
RR = 0.69 (0.49, 0.98)
K = 2, N = 129
Quality: moderate
Non-remissionRR = 0.62 (0.41, 0.94)
K = 3, N = 130
Quality: low
RR = 0.62 (0.47, 0.80)
K = 2, N = 129
Quality: high

From: 7, HIGH-INTENSITY PSYCHOLOGICAL INTERVENTIONS

Cover of Generalised Anxiety Disorder in Adults
Generalised Anxiety Disorder in Adults: Management in Primary, Secondary and Community Care.
NICE Clinical Guidelines, No. 113.
National Collaborating Centre for Mental Health (UK).
Leicester (UK): British Psychological Society; 2011.
Copyright © 2011, The British Psychological Society & The Royal College of Psychiatrists.

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