Table 4 Post-treatment and long-term effectiveness of Step by Step in comparison to enhanced treatment as usual in the per-protocol sample.

From: A WHO digital intervention to address depression among young Chinese adults: a type 1 effectiveness-implementation randomized controlled trial

 

Per-protocol sample (n = 182)

 

Posttreatment

Follow-up

 

β (95% CI)

p

Hedges’ g (95% CI)

β (95% CI)

p

Hedges’ g (95% CI)

Primary outcome

PHQ-9

2.14 (0.89, 3.38)

0.001

0.59 (0.25, 0.92)

1.09 (−0.15, 2.32)

0.086

0.30 (−0.03, 0.64)

Secondary outcomes

WHO-5

−1.56 (−2.91, −0.21)

0.025

0.40 (0.06, 0.73)

−1.83 (−3.17, −0.48)

0.009

0.46 (0.13, 0.79)

GAD-7

1.02 (−0.32, 2.37)

0.138

0.26 (−0.08, 0.59)

0.28 (−0.96, 1.53)

0.658

0.08 (−0.25, 0.41)

PSYCHLOPS

0.96 (−0.11, 2.04)

0.08

0.31 (−0.02, 0.64)

1.09 (0.03, 2.15)

0.045

0.37 (0.04, 0.70)

  1. GLMM was employed with adjusted covariates including time, participants, gender, history of past treatment, and history of mental illness.
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