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Table 3 Details of performed analyses

From: Duration of orthodontic treatment with fixed appliances in adolescents and adults: a systematic review with meta-analysis

Treatment Analysis Studies
(patients)
MD
(95% CI)
P value I2
(95% CI)
tau2
(95% CI)
95% prediction
Complete treatment (conventional appliances)a Original 7
(1150)
− 0.79
(− 4.18, 2.61)
0.65 92%
(77%, 99%)
17.05
(5.19, 134.34)
− 12.30, 10.72
Sensitivity; omitting Shim 2011 6
(1010)
0.39
(− 0.65, 1.42)
0.47 0%
(0%, 98%)
0
(0, 73.07)
− 1.08, 1.86
Alignment of displaced canine Original 1
(30)
3.79
(1.42, 6.16)
0.002
Distalization of 1st molar Original 1
(51)
0.06
(− 1.66, 1.78)
0.95
Retraction of canine Original 1
(18)
2.02
(− 0.49, 4.53)
0.12
  1. MD mean difference, CI confidence interval
  2. aOriginal analysis gives a very heterogeneous picture, which is probably incompatible with synthesis of the studies; the sensitivity analysis probably gives a more stable image and should be preferred