Table 4: Correlations between periodontal parameters and TOS, TAOC stratified by study groups with adjustment for age and sex

	TOS		TAOC
	Coef (95% CI)	p	Coef (95% CI)	p
PI
All	2.66 (0.34; 4.98)	0.026	0.50 (0.08; 0.93)	0.022
CP	3.07 (-0.77; 6.91)	0.110	0.62 (0.14; 1.09)	0.014
Control	-2.04 (-7.38; 3.30)	0.430	0.35 (-0.88; 1.58)	0.555
GI
All	2.28 (-0.19; 4.75)	0.069	0.39 (-0.07; 0.85)	0.093
CP	3.38 (-1.34; 8.10)	0.149	0.68 (0.08; 1.28)	0.029
Control	-1.78 (-6.19; 2.63)	0.405	0.28 (-0.74; 1.30)	0.570
BOP (%)
All	0.05 (0.01; 0.09)	0.013	0.01 (-0.01; 0.01)	0.194
CP	0.05 (-0.01; 0.10)	0.111	0.01 (-0.01; 0.01)	0.322
Control	-0.13 (-0.46; 0.20)	0.408	0.02 (-0.06; 0.09)	0.625
PPD (mm)
All	1.98 (0.72; 3.23)	0.003	0.20 (-0.05; 0.46)	0.112
CP	4.74 (2.03; 7.46)	0.002	0.17 (-0.33; 0.67)	0.481
Control	-0.42 (-2.71; 1.87)	0.703	0.05 (-0.47; 0.58)	0.833
AL (mm)
All	1.55 (0.65; 2.44)	0.001	0.12 (-0.06; 0.31)	0.188
CP	3.00 (1.56; 4.45)	<0.001	0.07 (-0.23; 0.36)	0.639
Control	-0.58 (-2.14; 0.97)	0.438	0.03 (-0.33; 0.39)	0.851
SFR (ml/p)
All	7.08 (-4.84; 18.99)	0.236	1.19 (-1.02; 3.40)	0.283
CP	15.18 (-16.33; 46.70)	0.322	-0.18 (-4.68; 4.32)	0.933
Control	7.59 (-3.20; 18.37)	0.155	1.79 (-0.66; 4.24)	0.142