Table 1 Frequency counts of subjects at each level of TF Index score
From: Evaluating the use of fluorescent imaging for the quantification of dental fluorosis
Photographic TF Score | City (frequency counts) | Total | |||
|---|---|---|---|---|---|
Newcastle | Manchester | ||||
n | % | n | % | ||
0 | 409 | 45% | 638 | 73% | 1047 |
1 | 355 | 39% | 209 | 24% | 564 |
2 | 79 | 9% | 16 | 2% | 95 |
3 | 53 | 6% | 4 | 1% | 57 |
4 | 8 | 1% | 0 | 0% | 8 |
5 | 1 | 0.1% | 2 | 0.2% | 3 |
Total | 905 | 869 | 1774 | ||