Lactulose H2 Breath Tests—Linear Meta-Regression Model
| Summary Statistics | ka = 14 | QM (df=1)b = 0.5296 (p = 0.4668) | I2c = 92.53% | R2d = 0.00% | |
|---|---|---|---|---|---|
| Estimate | Standard Error | p-Value | 95% CI (lower) | 95% CI (upper) | |
| Fixed Effects | |||||
| Intercept (B0) | 73.8142 | 4.5321 | * | 64.9315 | 82.6969 |
| Age (B1) | −0.3663 | 0.5034 | 0.4668 | −1.3529 | 0.6203 |
| Random Effects | |||||
| Between study variance (τ2) | 239.7203 | 116.7795 | — | — | — |
| Tau (τ) | 15.4829 | — | — | — | — |
↵a k = number of subject groups;
↵b QM = heterogeneity statistic (Cochran's Q) – tests whether any coefficient (not including the intercept) is significantly different than 0;
↵c I2 = % of total variability due to heterogeneity;
↵d R2 = % of total heterogeneity explained by the covariate(s);
↵* p-Value<0.0001; CI, confidence interval; —, value does not need to be determined.