TABLE 3.

SV40 in primary brain tumors^a

^aAnalysis of studies which examined the presence of the polyomavirus SV40 in primary brain tumors compared with control samples. Modified from reference 122; used with permission.

^bThe associations between SV40 and case or control status are reported as ORs for each study (black dots) and 95% CIs (bars), which are displayed on a logarithmic scale. The combined OR is shown as a black square. ORs and CIs are truncated at 100. An OR of >1 indicates that SV40 was more common in brain tumor samples than in control samples.