Table 5.

Correlation (r) values between clinical parameters at baseline

	Mean PD	PD ≥4 mm	BOP	HbA1c	Urinary NAG	Urinary albumin	GGT	TNF-α
PD ≥ 4 mm	0.878*
BOP	0.771*	0.608*
HbA1c	−0.152	−0.325	0.138
Urinary NAG	0.464	0.501	0.389	−0.24
Urinary albumin	0.643	0.690*	0.631	−0.109	0.726*
GGT	−0.024	0.021	−0.192	−0.376	0.148	0.176
TNF-α	0.379	0.393	0.021	−0.210	0.359	−0.052	0.243
hs-CRP	0.181	0.206	0.255	−0.010	0.663*	0.827*	0.174	−0.001

*Significant at P ≤ 0.05