Table 4b. Severity (mild, moderate, and severe) of gingival inflammation (Gl) per age and city.
| MILD GI | MODERATE GI | SEVERE GI | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Age (years) | n | % | IC 95% | n | % | IC 95% | n | % | IC 95% | p-value* | p-value** | ||
| PORTO ALEGRE | 18–19 | 13 | 54.2 | 34.2,72.9 | 11 | 45.8 | 27.1,65.8 | 0 | 0.0 | ||||
| 20–29 | 37 | 37.8 | 28.7,47.8 | 61 | 62.2 | 52.2,71.3 | 0 | 0.0 | |||||
| 30–39 | 54 | 47.0 | 38.0,56.1 | 57 | 49.6 | 40.5,58.7 | 4 | 3.5 | 1.3,9.0 | 0.090 | |||
| 40–49 | 41 | 40.2 | 31.1,50.0 | 58 | 56.9 | 47.0,66.2 | 3 | 2.9 | 0.9,8.8 | ||||
| ≥50 | 64 | 32.7 | 26.4,39.6 | 126 | 64.3 | 57.3,70.7 | 6 | 3.1 | 1.4,6.7 | ||||
| TUCUMÁN | 18–19 | 12 | 41.4 | 24.9,60.0 | 16 | 55.2 | 36.8,72.2 | 1 | 3.5 | 0.4,21.5 | |||
| 20–29 | 55 | 44.0 | 35.5,52.9 | 69 | 55.2 | 46.4,63.7 | 1 | 0.8 | 0.1,5.5 | ||||
| 30–39 | 48 | 41.7 | 33.0,51.0 | 65 | 56.5 | 47.3,65.3 | 2 | 1.7 | 0.4,6.7 | 0.300 | |||
| 40–49 | 42 | 48.8 | 38.4,59.4 | 41 | 47.8 | 37.3,58.3 | 3 | 3.5 | 1.1,10.4 | ||||
| ≥50 | 51 | 35.9 | 28.4,44.2 | 90 | 63.4 | 55.1,70.9 | 1 | 0.7 | 0.1,4.9 | ||||
| SANTIAGO | 18–19 | 3 | 12.5 | 4.0,33.0 | 21 | 87.5 | 67.0,96.0 | 0 | 0.0 | 0.007 | |||
| 20–29 | 2 | 1.6 | 0.4,6.2 | 118 | 93.7 | 87.8,96.8 | 6 | 4.8 | 2.1,10.2 | 0.000 | |||
| 30–39 | 6 | 6.0 | 2.7,12.7 | 90 | 89.1 | 81.3,93.9 | 5 | 5.0 | 2.1,11.4 | 0.230 | 0.000 | ||
| 40–49 | 3 | 2.9 | 0.9,8.8 | 93 | 91.2 | 83.8,95.4 | 6 | 5.9 | 2.7,12.5 | 0.000 | |||
| ≥50 | 4 | 2.1 | 0.8,5.4 | 176 | 91.7 | 86.8,94.8 | 12 | 6.3 | 3.6,10.7 | 0.000 | |||
| TOTAL | 18–19 | 28 | 36.4 | 26.4,47.7 | 48 | 62.3 | 51.0,72,5 | 1 | 1.3 | 0.2,8.7 | |||
| 20–29 | 94 | 26.9 | 22.5,31.8 | 248 | 71.1 | 66.1,75.6 | 7 | 2.0 | 1.0,4.2 | ||||
| 30–39 | 108 | 32.6 | 27.8,37.9 | 212 | 64.1 | 58.7,69.1 | 11 | 3.3 | 1.9,5.9 | 0.019 | |||
| 40–49 | 86 | 29.7 | 24.7,35.2 | 192 | 66.2 | 60.6,71.4 | 12 | 4.1 | 2.4,7.2 | ||||
| ≥50 | 119 | 22.5 | 19.1,26.2 | 392 | 74 | 70.0,77.5 | 19 | 3.6 | 2.3,5.6 | ||||
Chi-square test, to assess differences between ages versus severity for each city and total (p-value*), differences between cities by each group (p-value**)