Table 2: IL-17A −197A/G (rs2275913) genotype and allele frequencies in healthy controls, patients with CP, T1DM (and the T1DM + CP subgroup).

IL-17A −197ControlsCPT1DMT1DM + CP

Genotype and allele
(%)

(%)
OR
(95% CI)

(%)
OR
(95% CI)

(%)
OR
(95% CI)

AA18 (11.7)32 (13.1)0.561.00 (0.52–1.93)23 (18.4)0.051.93 (0.93–4.00)6 (15.8)0.461.20 (0.42–3.48)
AG71 (46.1)97 (39.8)0.140.77 (0.50–1.19)59 (47.2)0.231.26 (0.75–2.11)14 (36.8)0.250.71 (0.33–1.55)
GG65 (42.2)115 (47.1)1.0043 (34.4)1.0018 (47.4)1.00

AA + AG
versus GG
89 versus 65 (57.8/42.2)129 versus 115
(52.9/47.1)
0.200.82 (0.55–1.23)82 versus 43
(65.6/34.4)
0.111.39 (0.85–2.27)20 versus 18
(52.6/47.4)
0.350.81 (0.40–1.65)

A107 (34.7)161 (33.0)0.92 (0.68–1.25)105 (42.0)1.36 (0.96–1.92)26 (34.2)0.98 (0.58–1.66)
G201 (65.3)327 (67.0)0.331.00145 (58.0)0.051.0050 (65.8)0.371.00

CI = confidential interval, CP = chronic periodontitis, = number of subjects, OR = odds ratio, and T1DM = diabetes mellitus type 1; value < 0.05 (in comparison with healthy controls).