Table 4.

Indicator species of P and H groups.

	Test-statistic	p-value	Positive predictive value	Sensitivity	Total reads assigned to species
Group H (number of indicator species = 4)
Leptotrichia buccalis	0.80	0.01*	0.85	0.75	107
Corynebacterium matruchotii	0.79	0.03*	0.82	0.75	128
Leptotrichia hofstadii	0.72	0.04*	0.87	0.60	126
Streptococcus intermedius	0.71	0.03 *	0.77	0.65	43
Group P (number of indicator species = 7)
Campylobacter concisus	0.86	0.02*	0.74	1.00	291
Atopobium parvulum	0.79	0.03*	0.71	0.87	416
Leptotrichia sp oral taxon 215	0.76	0.04*	0.79	0.73	213
Lachnoanaerobaculum orale	0.76	0.04*	0.86	0.67	193
Haemophilus parahaemolyticus	0.74	0.03*	0.82	0.67	127
TM7 G.1 sp oral taxon 347	0.56	0.04*	0.94	0.33	26
Fusobacterium sp oral taxon 370	0.55	0.04*	0.90	0.33	16

^*p < 0.05, significant.