Table 2. Periodontal and serum parameters of the main groups.

Variable	C (n=68)	H1 (n=66)	H2 (n=57)	P value
PI	1.42 (0.75–2.15)	1.23 (0.78–1.85)	1.29 (0.71–2.03)	0.396
GI	0.77 (0.52–1.23)	0.87 (0.56–1.16)	0.92 (0.67–1.22)	0.551
PD (mm)	2.15 (1.77–2.85)	2.10 (1.70–2.70)	2.34 (2.08–2.90)	0.096
BOP%	38.00 (24.00–56.66)	40.66 (25.85–62.89)	46.42 (20.25–90.16)a)	0.006
CAL (mm)	2.17 (1.75–2.90)	2.24 (1.73–2.90)	2.95 (2.06–3.29)a)	0.008
TC (mg/dL)	159.50 (142.00–178.75)	216.00 (206.00–229.00)a)	225.00 (208.00–251.50)a)	0.000
LDL (mg/dL)	94.00 (74.30–105.70)	144.80 (125.00–157.00)a)	143.00 (124.60–169.50)a)	0.000
HDL (mg/dL)	45.00 (38.00–50.00)	42.00 (38.00–48.00)	47.00 (41.00–55.00)b)	0.006
TC/HDL	3.64 (2.95–4.16)	5.11 (4.62–5.86)a)	5.50 (3.87–5.64)a)	0.000
VLDL (mg/dL)	19.40 (15.25–24.45)	29.80 (21.00–40.00)a)	26.00 (20.10–49.00)a)	0.000
TRG (mg/dL)	97.00 (68.25–128.25)	136.00 (103.00–183.00)a)	127.00 (102.50–186.50)a)	0.000
MPO (ng/mL)	56.56 (32.64–80.33)	59.52 (32.40–82.54)	56.71 (29.52–79.72)	0.210
oxLDL (ng/mL)	155.32 (113.42–262.96)	166.97 (116.95–302.77)	224.12 (133.04–397.54)a)	0.016
Anti-oxLDL (mU/mL)	32.91 (14.74–55.72)	37.92 (15.14–55.72)	45.27 (20.23–49.11)a)	0.015

Data are shown as median (25%–75%).

C: systemically healthy control, H1: hyperlipidemic patients with mild-to-moderate metabolic control, H2: hyperlipidemic patients with poor metabolic control, PI: plaque index, GI: gingival index, PD: probing pocket depth, BOP: bleeding on probing, CAL: clinical attachment loss, TC: total cholesterol, LDL: low-density lipoprotein, HDL: high-density lipoprotein, TC/HDL: ratio of total cholesterol to high-density lipoprotein, VLDL: very low-density lipoprotein, TRG: triglyceride, MPO: myeloperoxidase, oxLDL: oxidized low density lipoprotein, anti-oxLDL: anti-oxidized low density lipoprotein.

^a)Significant difference from the C group (P<0.05); ^b)Significant difference from the H1 group (P<0.05).