Genotypes | Non-smoking controls (N = 129) | Non-smoking periodontitis patients (N = 130) | p level | OR (95%CI) | Smoking controls (N = 58) | Smoking periodontitis patients (N = 57) | p level | OR (95%CI) |
---|---|---|---|---|---|---|---|---|
GSTM1 | Â | |||||||
Wild | 59 (45.7) | 63 (48.5) | 0.38 | 1.00 | 31 (53.4) | 25 (43.9) | 0.20 | 1.00 |
Null | 70 (54.3) | 67 (51.5) | 0.90 (0.55–1.46) | 27 (46.6) | 32 (56.1) | 1.47 (0.70–3.06) | ||
GSTT1 | Â | |||||||
Wild | 96 (74.4) | 110 (84.6) | 0.03* | 1.00 | 48 (82.8) | 43 (75.4) | 0.23 | 1.00 |
Null | 33 (25.6) | 20 (15.4) | 0.53 (0.28–0.98) | 10 (17.2) | 14 (24.6) | 1.56 (0.63–3.88) | ||
GSTM1/GSTT1 | Â | |||||||
Both wild | 44 (34.1) | 50 (38.5) | 0.07 | 1.00 | 24 (41.4) | 21 (36.8) | 0.11 | 1.00 |
Either null | 67 (51.9) | 73 (56.2) | 1.04 (0.62–1.76) | 31 (53.4) | 26 (45.6) | 0.96 (0.44–2.10) | ||
Both null | 18 (14.0) | 7 (5.4) | 0.34 (0.13–0.90) | 3 (5.2) | 10 (17.5) | 3.81 (0.92–15.71) | ||
GSTP1 Ile105Val (rs1695 A313G) | Â | |||||||
AA (Ile/Ile) | 38 (43.7) | 72 (55.8) | 0.14 | 1.00 | 32 (66.7) | 30 (53.6) | 0.35 | 1.00 |
AG (Ile/Val) | 42 (48.3) | 45 (34.9) | 0.57 (0.32–1.01) | 14 (29.2) | 24 (42.9) | 1.83 (0.80–4.18) | ||
GG (Val/Val) | 7 (8.0) | 12 (9.3) | 1.11 (0.40–3.04) | 2 (4.2) | 2 (3.6) | 0.94 (0.12–7.08) | ||
GSTP1 Ala114Val (rs1138272 C341T) | Â | |||||||
CC (Ala/Ala) | 69 (79.3) | 113 (87.6) | 0.009* | 1.00 | 44 (91.7) | 50 (89.3) | 0.68 | 1.00 |
CT (Ala/Val) | 18 (20.7) | 11 (8.5) | 0.37 (0.17–0.84) | 4 (8.3) | 6 (10.7) | 1.32 (0.35–4.98) | ||
TT (Val/Val) | 0 (0.0) | 5 (3.9) | NA | 0 (0.0) | 0 (0.0) | NA | ||
GSTP1 | Â | |||||||
*A/*A | 38 (43.7) | 72 (55.8) | 0.04* | 1.00 | 32 (66.7) | 30 (53.6) | 0.54 | 1.00 |
*A/*B | 29 (33.3) | 36 (27.9) | 0.66 (0.35–1.23) | 10 (20.8) | 18 (32.1) | 1.92 (0.77-4:82) | ||
*A/*C | 13 (14.9) | 9 (7.0) | 0.37 (0.14–0.93) | 4 (8.3) | 6 (10.7) | 1.60 (0.41–6.23) | ||
*B/*B | 2 (2.3) | 5 (3.9) | 1.32 (0.24–7.12) | 2 (4.2) | 2 (3.6) | 0.94 (0.12–7.08) | ||
*B/*C | 5 (5.7) | 2 (1.6) | 0.21 (0.04–1.14) | 0 (0.0) | 0 (0.0) | NA | ||
*C/*C | 0 (0.0) | 5 (3.9) | NA | 0 (0.0) | 0 (0.0) | NA |