|
Bivariate and multivariate analyses according to the time of the variable fluoridation in the 246 municipalities studied. |
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| Variable |
n |
Fluoridation before 1990 n = 72 n(%) |
Fluoridation after 1990 n = 41 n(%) |
Without fluoridation n = 133 n(%) |
P-value* (bivariate) |
P-value** (multivariate) |
|
|
||||||
| HDI-M |
||||||
| > 0.743 |
121 |
54 (44.6) |
28 (23.1) |
39 (32.2) |
< 0.0001 |
0.416 |
| ≤ 0.743 |
125 |
18 (14.4) |
13 (10.4) |
94 (75.2) |
||
| Percentage access to mains water |
||||||
| > 84.24% |
123 |
59 (48.0) |
26 (21.1) |
38 (30.9) |
< 0.0001 |
0.213 |
| ≥ 84.24% |
123 |
13 (10.6) |
15 (12.2) |
95 (77.2) |
||
| Population size |
||||||
| > 24440 inhabitants |
122 |
50 (41.0) |
21 (17.2) |
51 (41.8) |
< 0.0001 |
< 0.0001 |
| ≤ 24440 inhabitants |
124 |
22 (17.7) |
20 (16.1) |
82 (66.1) |
||
| Macro region South/Southeast |
148 |
69 (46.6) |
34 (23.0) |
45 (30.4) |
< 0.0001 |
< 0.0001 |
| Mid West and North/Northeast |
98 |
3 (3.1) |
7 (7.1) |
88 (89.8) |
||
|
(*) Fisher's Exact Test (P < 0.05) (**) Linear regression (P < 0.05) | ||||||
Gabardo et al. BMC Oral Health 2008 8:9 doi:10.1186/1472-6831-8-9 |
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