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Table 7 Score differences and standard effect sizes for treatment arm comparisons at 3 months for participants in the SMS sub-study

From: Feasibility, acceptability and validity of SMS text messaging for measuring change in depression during a randomised controlled trial

  Acupuncture vs usual care Counselling vs usual care Acupuncture vs counselling
Outcome N Score diff SD* Standard effect size N Score diff SD* Standard effect size N Score diff SD* Standard effect size
PHQ-9 Total 272 −3.40 6.45 0.53 258 −1.90 6.45 0.29 342 −1.50 6.45 0.23
PHQ-9 Item 1 271 −0.36 0.87 0.42 257 −0.28 0.87 0.32 342 −0.09 0.87 0.10
PHQ-9 Item 2 271 −0.54 0.91 0.60 257 −0.22 0.91 0.24 340 −0.33 0.91 0.36
PHQ-9 Item 3 271 −0.26 1.03 0.25 256 −0.14 1.03 0.14 341 −0.12 1.03 0.11
PHQ-9 Item 4 270 −0.42 0.96 0.43 258 −0.20 0.96 0.21 340 −0.22 0.96 0.23
PHQ-9 Item 5 270 −0.13 1.08 0.12 257 0.01 1.08 0.00 341 −0.13 1.08 0.12
PHQ-9 Item 6 271 −0.45 1.03 0.44 258 −0.20 1.03 0.19 341 −0.25 1.03 0.24
PHQ-9 Item 7 272 −0.56 0.99 0.57 258 −0.37 0.99 0.37 342 −0.20 0.99 0.20
PHQ-9 Item 8 272 −0.36 0.92 0.40 257 −0.33 0.92 0.36 341 −0.04 0.92 0.04
PHQ-9 Item 9 272 −0.27 0.79 0.35 258 −0.15 0.79 0.19 342 −0.12 0.79 0.15
R-SMS-DS Week 16 236 −1.41 2.37 0.59 222 −1.09 2.37 0.46 288 −0.32 2.37 0.14
  1. *Standard Deviation of total sample used for all comparisons.
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