Table 2. Prevalence of gingival inflammation according to risk indicators per city.
| Variables | PREVALENCE OF GINGIVAL INFLAMMATION BY CITY AND TOTAL | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n | (%) | PORTO ALEGRE | TUCUMÁN | SANTIAGO | TOTAL | p-value** | ||||||
| n | (%) | n | (%) | n | (%) | n | (%) | |||||
| Gender | Female | 867 | 52.6 | 275 | 98 | 274 | 92.6 | 286 | 98.3 | 835 | 96.3 | |
| Male | 783 | 47.5 | 260 | 96.3 | 223 | 87.8 | 259 | 100 | 742 | 94.8 | 0.127 | |
| Education (years) | ≤12 | 1 099 | 66.6 | 424 | 97.9 | 352 | 94.9* | 293 | 99.3 | 1 069 | 97.3* | |
| >12 | 551 | 33.4 | 111 | 94.9 | 145 | 81.0 | 252 | 98.8 | 508 | 92.2 | 0.000 | |
| Smoking | No | 1 180 | 71.5 | 384 | 96.7 | 368 | 89.5 | 368 | 98.9 | 1 120 | 94.2 | |
| Current (light) | 171 | 10.4 | 17 | 100.0 | 57 | 96.6 | 94 | 98.9 | 168 | 98.3 | ||
| Current (moderate) | 76 | 4.6 | 24 | 96.0 | 17 | 94.4 | 33 | 100.0 | 74 | 97.4 | ||
| Current (heavy) | 223 | 13.5 | 110 | 99.1 | 55 | 88.7 | 50 | 100.0 | 215 | 96.4 | 0.194 | |
| Self-reported diabetes | No diabetes | 1 528 | 92.6 | 489 | 97.0 | 493 | 90.3 | 473 | 99.0 | 1 455 | 95.2 | |
| Yes | 122 | 7.4 | 46 | 100 | 4 | 100 | 72 | 100 | 122 | 100* | 0.005 | |
| Self-reported hypertension | No hypertension | 1 332 | 80.7 | 379 | 96.4 | 443 | 89.5 | 441 | 99.3 | 1 263 | 94.8 | |
| Yes | 318 | 19.3 | 156 | 99.4 | 54 | 98.2* | 104 | 98.1 | 314 | 98.7* | 0.001 | |
| Plaque Index | <30% | 58 | 3.5 | 11 | 64.7 | 7 | 21.2 | 6 | 75.0 | 24 | 41.4 | |
| ≥30% | 1 592 | 96.5 | 524 | 98.3* | 490 | 94.8* | 539 | 99.5* | 1 553 | 97.6* | 0.000 | |
*
p-value <0.05, Fisher's exact test, to assess differences between prevalence of gingival inflammation for each variable and city
**
p-value, Fisher's exact test, to assess differences between prevalence of gingival inflammation in the total sample for each variable