Table 3 Distribution of oral health parameters according to blood lead level quartiles
Total (n = 137) | Quartile I (n = 35) | Quartile II (n = 34) | Quartile III (n = 34) | Quartile IV (n = 34) | P-value | |
|---|---|---|---|---|---|---|
No. (%) | No. (%) | No. (%) | No. (%) | No. (%) | ||
Presence of dental caries | ||||||
DMFT (mean ± SD) | 1.5 ± 1.9 | 1.4 ± 1.5 | 1.7 ± 2.3 | 1.1 ± 1.5 | 1.7 ± 2.1 | 0.477a |
History of dental caries (DMFT ≥1) | ||||||
Yes | 63 (46.0) | 11 (31.4) | 17 (50.0) | 18 (52.9) | 17 (50.0) | 0.252* |
No | 74 (54.0) | 24 (68.6) | 17 (50.0) | 16 (47.1) | 17 (50.0) | |
Community periodontal index | ||||||
mean ± SD | 1.1 ± 0.8 | 0.9 ± 0.8 | 1.2 ± 0.7 | 1.2 ± 0.7 | 1.1 ± 0.8 | 0.358a |
0 | 34 (27.8) | 13 (41.9) | 7 (23.3) | 4 (12.1) | 10 (31.3) | 0.083 |
≥ 1 | 92 (73.0) | 18 (58.1) | 23 (76.7) | 29 (87.9) | 22 (68.8) | |
Gingival index | ||||||
mean ± SD | 2.1 ± 0.9 | 1.8 ± 0.9 | 2.1 ± 0.8 | 2.3 ± 0.7 | 2.0 ± 0.9 | 0.150a |
≤ 1 | 37 (28.5) | 15 (42.9) | 8 (23.5) | 5 (14.7) | 11 (32.4) | 0.061 * |
2-3 | 98 (71.5) | 20(57.1) | 26 (76.5) | 29 (85.3) | 23 (67.6) | |
Plaque index | ||||||
mean ± SD | 2.6 ± 0.5 | 2.4 ± 0.5 | 2.6 ± 0.5 | 2.7 ± 0.4 | 2.7 ± 0.5 | 0.015 a |
≤ 2 | 56 (40.9) | 21 (60.0) | 15 (44.1) | 9 (26.5) | 11(32.4) | 0.025 * |
3 | 81 (59.1) | 14 (40.0) | 19 (55.9) | 25 (73.5) | 23 (67.6) | |