Table 2 Results from the two sensitivity analyses conducted: first removing the outlier; then the high-influence studies from the original analysis.

From: Association between formal thought disorder and cannabis use: a systematic review and meta-analysis

Analysis

SMD

95%CI

p

95%PI

I²

I² 95%CI

Originala

0.21

[0.12;0.29]

0.00009

[0.10;0.33]

34%

[0.0%;61.9%]

Main - Outlier removedb

0.22

[0.15;0.29]

<0.0001

[0.10;0.33]

5%

[0.0%;52.4%]

Infl. studies removedc

0.22

[0.15;0.29]

<0.0001

[0.14;0.30]

<1%

[0.0%;52.3%]

  1. aAll studies included (k = 19). bOutlier excluded47(k = 18). cThree studies excluded30,42,47 (k = 16). Abbreviations: k, number of studies, CI Confidence Interval; PI Predication Interval, Infl. studies Influence studies.
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