Table 8

Descriptive data for fluorosis TF scores
City Mann Whitney U
Newcastle fluoridated Manchester non-fluoridated
Number % Number %
Fluorosis TF Score U = 264614, z = −13.025, p < 0.0001
0 410 45% 638 73%
1 355 39% 209 24%
2 79 9% 16 2%
3 53 6% 4 1%
4 8 1% 0 0%
5 1 0.1% 2 0.2%
Total 906 869

McGrady et al.

McGrady et al. BMC Public Health 2012 12:1122   doi:10.1186/1471-2458-12-1122

Open Data