. 2012 Oct;105(10):436–445. doi: 10.1258/jrsm.2012.120049

Table 2.

Meta-regression to explain potential sources of heterogeneity

Potential heterogeneity source		6–8 hour	12 hour	24 hour
Fully blinded versus non-fully blinded	Significance	Yes (P < 0.001)	Yes (P < 0.001)	Yes (P < 0.001)
Fully blinded versus non-fully blinded	Heterogeneity within groups	No (P = 0.37 and 0.2 for fully blinded and partially blinded trials respectively)	Yes (P = 0.001)	Yes (P < 0.001)
CABG versus non-CABG	Significance	Yes (P = 0.037)	No (P = 0.91)	No (P = 0.29)
CABG versus non-CABG	Heterogeneity within groups	Yes (P = 0.009)	N/A	N/A
Troponin T versus I	Significance	Yes (P = 0.013)	No (P = 0.96)	No (P = 0.17)
Troponin T versus I	Heterogeneity within groups	Yes (P = 0.019)	N/A	N/A
Child versus adult	Significance	No (P = 0.37)	No (P = 0.23)	No (P = 0.38)
Child versus adult	Heterogeneity within groups	N/A	N/A	N/A

N/A: Not applicable