Table 3.
Analysis of caries according to first permanent molar surface in schoolchildren in Zagreb
| No. (%) of children with |
|||||
|---|---|---|---|---|---|
| Variable | without caries | partial caries (mesial, central, or distal) | complete caries (mesial + central + distal) | Total | χ2 test |
| Sex: |
|||||
| male |
638 (46.4) |
723
(52.6) |
13
(1.0) |
1374 |
χ22 = 0.432
P = 0.806 |
| female |
574 (47.1) |
634
(52.1) |
9
(0.8) |
1217 |
|
| Age: |
|||||
| 7-10* |
734 (51.9) |
677
(47.8) |
4
(0.3) |
1415 |
χ22 = 41.294
P < 0.001 |
| 11-14* |
478 (40.6) |
680
(57.8) |
18
(1.5) |
1176 |
|
| 7* |
73
(57.9) |
53
(42.1) |
- |
126 |
χ27 = 66.526 P < 0.001 |
| 8* |
377
(56.3) |
292
(43.6) |
1
(0.1) |
670 |
|
| 9* |
175
(49.7) |
177
(50.3) |
- |
352 |
|
| 10* |
109
(40.8) |
155
(58.1) |
3
(1.1) |
267 |
|
| 11* |
105
(47.3) |
117
(52.7) |
- |
222 |
|
| 12* |
142
(45.8) |
161
(51.9) |
7
(2.2) |
310 |
|
| 13* |
82
(35.3) |
143
(61.6) |
7
(3) |
232 |
|
| 14* |
149
(36.2) |
259
(62.9) |
4
(0.9) |
412 |
|
| Total | 1212 (46.8) | 1357 (52.4) | 22 (0.8) | 2591 | |
*Statistical significance (P < 0.001).