n | Coefficient* | CI | p Value | Adjusted R2† | |
---|---|---|---|---|---|
Study setting | |||||
TB incidence | 23 | 0.14 | 0.04 to 0.24 | 0.007 | 26.74 |
TB/HIV coinfection | 23 | 0.04 | −0.03 to 0.11 | 0.246 | 2.00 |
Maximum cluster size | 19 | 0.20 | 0.09 to 0.30 | 0.001 | 48.20 |
Study design | |||||
Study duration | 27 | −0.02 | −0.09 to 0.06 | 0.677 | −3.37 |
Percentage of population that is culture positive | 15 | 0.34 | −1.23 to 1.96 | 0.661 | −5.92 |
Percentage of culture positive typed | 19 | 0.22 | −1.08 to 1.52 | 0.725 | −5.41 |
Study size | 27 | 0.03 | −0.11 to 0.16 | 0.702 | −3.31 |
24 loci (compared to 15) | 27 | −0.30 | −0.59 to −0.01 | 0.04 | 13.58 |
Consent required | 27 | 0.38 | 0.04 to 0.72 | 0.029 | 14.41 |
*Coefficients for the change in the proportion of clustering for each covariate. For example, for a one unit increase in maximum cluster size, the proportion of clustering increases by 0.2.
†The proportion of between-study variation explained by the univariate metaregression.
TB, tuberculosis.