Figure 1. Meta-analysis of the effect of screening and feedback on the proportion of patients with persistent depression (Text Description)

A

Study: Zung
Screening n/N: 7/21
Usual Care n/N: 13/20
Weight %: 1.9
RR (95% CI Random): 0.51(0.26,1.02)

Study: Katzelnick
Screening n/N: 111/203
Usual Care n/N: 128/177
Weight %: 17.6
RR (95% CI Random): 0.76(0.65,0.88)

Study: Williams
Screening n/N: 56/153
Usual Care n/N: 30/65
Weight %: 6.6
RR (95% CI Random): 0.79(0.57,1.11)

Study: Whooley
Screening n/N: 41/97
Usual Care n/N: 54/109
Weight %: 7.8
RR (95% CI Random): 0.85(0.63,1.15)

Study: Wells
Screening n/N: 427/770
Usual Care n/N: 249/386
Weight %: 24.3
RR (95% CI Random): 0.86(0.78,0.95)

Study: Lewis
Screening n/N: 111/161
Usual Care n/N: 117/157
Weight %: 19.4
RR (95% CI Random): 0.93(0.81,1.06)

Study: Callahan
Screening n/N: 87/100
Usual Care n/N: 66/75
Weight %: 22.4
RR (95% CI Random): 0.99(0.88,1.11)

Total (95% CI)
Screening n/N: 840/1,505
Usual Care n/N: 657/989
Weight %: 100.0
RR (95% CI Random): 0.87(0.79,0.95)

Test for heterogeneity chi-square=12.47 df=6 p=0.052

B

Study: Zung
Screening n/N: 7/21
Usual Care n/N: 13/20
Weight %: 2.7
RR (95% CI Random): -0.32(-0.61,-0.03)

Study: Katzelnick
Screening n/N: 111/203
Usual Care n/N: 128/177
Weight %: 17.1
RR (95% CI Random): -0.18(-0.27,-0.08)

Study: Williams
Screening n/N: 56/153
Usual Care n/N: 30/65
Weight %: 9.4
RR (95% CI Random): -0.10(-0.24,0.05)

Study: Wells
Screening n/N: 427/770
Usual Care n/N: 249/386
Weight %: 28.3
RR (95% CI Random): -0.09(-0.15,-0.03)

Study: Whooley
Screening n/N: 41/97
Usual Care n/N: 54/109
Weight %: 10.2
RR (95% CI Random): -0.07(-0.21,-0.06)

Study: Lewis
Screening n/N: 111/161
Usual Care n/N: 117/157
Weight %: 16.2
RR (95% CI Random): -0.06(-0.15,-0.04)

Study: Callahan
Screening n/N: 87/100
Usual Care n/N: 66/75
Weight %: 16.2
RR (95% CI Random): -0.01(-0.11,-0.09)

Total (95% CI)
Screening n/N: 840/1,505
Usual Care n/N: 657/989
Weight %: 100.0
RR (95% CI Random): -0.09(-0.14,-0.04)

Test for heterogeneity chi-square=8.68 df=6 p=0.19

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