Longitudinal Relationship between Plasma Reactive Oxygen Metabolites and Periodontal Condition in the Maintenance Phase of Periodontal Treatment

Table 2

Comparisons of each parameter at baseline between the subjects with low oxidative status (≤380 CARR U) and high oxidative status (>380 CARR U).

Variables	Plasma ROM Level (CARR U)		P value
	Low oxidative status (N = 23); N (%) or Mean ± SD	High oxidative status (N = 22); N (%) or Mean ± SD
Gender			0.608*
Male	3 (13.0)	1 (4.5)
Female	20 (87.0)	21 (95.5)
Age (years)	57.6 ± 9.4	60.1 ± 11.0	0.418^†
Teeth present (n)	26.7 ± 3.0	23.2 ± 5.0	0.009^†
PPD (mm)	1.8 ± 0.3	1.8 ± 0.4	0.959^†
CAL (mm)	2.1 ± 0.4	3.0 ± 1.4	0.010^†
Teeth with CAL ≥7 mm (n)	0.4 ± 0.6	2.1 ± 4.0	0.053^†
BOP (%)	4.9 ± 4.3	4.2 ± 3.9	0.578^†
PCR (%)	17.0 ± 13.9	15.1 ± 13.2	0.640^†
BAP (μmol/L)	2350.9 ± 230.0	2411.6 ± 261.0	0.412^†

∗Fisher’s exact test. ^†Unpaired t-test.
N: number; SD: standard deviation; PPD: probing pocket depth; CAL: clinical attachment level; BOP: bleeding on probing; PCR: plaque control record; ROM: reactive oxygen metabolites; CARR U: Carratelli units; and BAP: biologic antioxidant potential.