. 2009 May 6;47(7):2018–2025. doi: 10.1128/JCM.00338-09

TABLE 3.

Shift of prevalence of A. actinomycetemcomitans strain(s) recovered from the periodontal crevice

Group^a	Clone type(s)	No. (%) of patients positive for strain(s) of A. actinomycetemcomitans at 12 mo
JP2 strain infected	JP2	14 (56)^b,^c
	Non-JP2	0 (0)
	Both JP2 and non-JP2	0 (0)
	Not detectable	11 (44)
Non-JP2 strain	JP2	0 (0)
infected	Non-JP2	18 (72)^b,^c
	Both JP2 and non-JP2	0 (0)
	Not detectable	7 (28)

At 0 months, both groups had 25 patients (100%) positive for A. actinomycetemcomitans.

Intragroup reduction from 0 months to 12 months is significant as analyzed by the Wilcoxon test (JP2-strain-infected group, P = 0.003; non-JP2-strain-infected group, P = 0.0180).

Prevalence of non-JP2 strains at 12 months is not significantly different from that of JP2 strains at 12 months by the Mann-Whitney test (P = 0.3320).