Table 1 Demographic and clinical data of patients with SLE and healthy control subjects

Subjects

24 (46.2%)

28 (53.8%)

17 (32.7%)

35 (67.3%) ^ab

Females (%)

39

48

30

57

Age (years)

34.7 (±15.9)

46.3 (±13.2)^a

31.2 (±5.2)

40.5 (±10.1) ^ab

Smoking status (%)

3.81

7.60

5.70

9.60

SLE duration (years)

–

–

8.6 (±6.2)

12.5 (±7.8)^a

SLEDAI

–

–

4.5 (±4.0)

5.5 (±4.6)

SLICC/ACR

–

–

0.5 (±1.0)

0.9 (±0.9)

Probing depth (mm)

1.65 (±0.31)

2.72 (±0.62)^a

1.91 (±0.62)

3.37 (±0.49) ^ab

Clinical attachment level (mm)

2.60 (±0.24)

3.62 (±0.63)^a

2.97 (±0.63)

4.00 (±0.63) ^ab

Bleeding upon probing (% sites)

4.67 (±7.85)

20.78(±19.5)^a

7.20 (±4.70)

16.91 (±15.9)^a

Plaque Index (score)

0.43 (±0.28)

0.91(±0.59)^a

0.83 (±0.40)

0.88 (±0.50)

Tooth brushing (times/day)

2.85 (±0.93)

2.62 (±0.85)

3.0 (±0.76)

2.96 (±0.92)

Dental floss (times/day)

1.06 (±0.94)

0.74 (±0.89)

1.26 (±1.40)

1.38 (±1.30)

Tooth loss

1.78 (±2.17)

4.50 (±3.70)^a

1.38 (±1.57)

4.90 (±4.17)^a