Table 5.
Level of gingival inflammation in the 12-year olds by gender, area of residence, and governorate.
| None N (%) |
Mild N (%) |
Moderate N (%) |
Severe N (%) |
|
|---|---|---|---|---|
| Gender | ||||
| Male (n = 2052) | 367 (17.9) | 625 (30.5) | 1059 (51.6) | 1 (0.00%) |
| Female (n = 2052) | 513 (25.0) | 635 (30.9) | 904 (44.1) | 0 (0.00%) |
| Total (n = 4104) | 880 (21.4) | 1260 (30.7) | 1963 (47.8) | 1 (0.00%) |
| Mann-Whitney | <0.001 | |||
| Area of residence (for 12 years) | ||||
| Urban (n = 1520) | 239 (15.7) | 487 (32.0) | 794 (52.2) | 0 (0.00%) |
| Rural (n = 1292) | 301 (23.3) | 349 (27.0) | 641 (49.9) | 1 (0.00%) |
| Periurban (n = 1292) | 340 (26.3) | 424 (32.8) | 528 (40.9) | 0 (0.00%) |
| Total (n = 4104) | 880 (21.4) | 1260 (30.7) | 1963 (47.8) | 1 (0.00%) |
| Kruskal-Wallis | <0.001 | |||
| Governorate | ||||
| Sana'a (n = 1216) | 0 (0.0) | 129 (10.6) | 1086 (89.3) | 1 (0.01%) |
| Taiz (n = 836) | 392 (46.9) | 351 (42.0) | 93 (11.1) | 0 (0.0%) |
| Hodeida (n = 684) | 269 (39.3) | 339 (49.6) | 76 (11.1) | 0 (0.0%) |
| Hajjah (n = 684) | 0 (0.0) | 52 (7.6) | 632 (92.4) | 0 (0.0%) |
| Hadramaut (n = 684) | 219 (32.0) | 389 (56.9) | 76 (11.1) | 0 (0.0%) |
| Total (n = 4104) | 0880 (21.4) | 1260 (30.7) | 1963 (47.8) | 1 (0.0%) |
| Kruskal-Wallis | <0.001 | |||