However, this is not necessarily true in other fields; for example, in a multivariate meta-analysis of longitudinal data the within-study correlations varied between 0.48 and 0.97 (Jones et al., personal communication).
For example, in a meta-analysis, Rind et al.
For example in a meta-analysis of 8 European studies, Veldt et al. reported regression of fibrosis in approximately one third of patients achieving SVR [ 106].
For example, in a meta-analysis of obesity among West African populations, the prevalence of obesity was 10.0% (95% CI, 6.0-15.0) [ 71, 72].
For example, in the meta-analysis of Boothe et al. [ 27], only one article included in the meta-analysis had no direct connection with either of the two known studies.
For example, in their meta-analysis of 39 studies Lazarou et al. estimated an ADR prevalence rate for the USA of 15.1% [ 21].
For example in the meta-analysis of individual data on breast cancer, only 541 of the 13 381 cases appeared to have information recorded on adult height.
For example, on air quality, a meta-analysis in 2006 of 24 studies found that poor air quality lowered performance by up to 10% on measures such as typing speed and units output.
We are not aways told that a systematic review is better than an individual study, for example, or that a meta-analysis is the gold standard.
Lee et al., for example, recently conducted a meta-analysis of 11 previously published articles [ 29].
For example, in the longitudinal analysis of walking speed, the intervention group improved by 7.6 units more than the control group (SE 3.0, P = 0.013; compare with Table 2).
