Table 3.

Primary predictor variable versus the primary outcome variable, alveolar osteitis (AO)

Day	CGF-AO		NonCGF-AO
	AO present (n %)	AO absent (n %)	AO present (n %)	AO absent (n %)
3a	0 (0%)	70 (100%)	8 (11.4%)	62 (88.6%)
7a	0 (0%)	70 (100%)	0 (0%)	70 (100%)
p valuea	p < 0.001
Differences	Pairwise Comparisonsb
CGF-NonCGF at 3rd day	p < 0.001
CGF-NonCGF at 7th day	1.00
3rd-7th days in CGF	1.00
3rd-7th days in NonCGF	p < 0.001

Abbreviations: AO alveolar osteitis, CGF concentrated growth factors

^aCochran’s Q test Test χ2(3) = 24

^bWith Bonferroni correction