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Table 3 Summary of the meta-regression analysis including sample size, country (continent where the study was conducted, and the quality of the studies in the model

From: A systematic review and meta-analysis of the prevalence of bipolar disorder among homeless people

Variables in the final model Univariate model   Multivariable model
  Coefficients 95% CI P-value Coefficients 95% CI P-value
Sample size
400 and above
Below 400
Reference
0.188
Reference
− 0.865-1.242
Reference
0.727
Reference
−0.032
Reference
−1.214-1.152
Reference
0.958
Country (continent)
Europe
Others
Reference
0.252
Reference
−0.659-1.163
Reference
0.588
Reference
0.249
Reference
−0.670-1.168
Reference
0.595
Quality of studies
High
Low/moderate
Reference 0.421 Reference
−0.794-1.321
Reference
0.326
Reference
0.438
Reference
−0.721-1.597
Reference
0.459
  1. Test of the model (multivariable model): R2 = 0.08; P-value = 0.772