Table 2

Selection of images showing a range of TF scores by response to questions about white marks (N = 2800*)
Set of photographs selected by volunteers Don’t know Total
TF = 0 TF = 1 - 2 TF = 2 - 3
All volunteers 1,581 (56%) 470 (17%) 256 (9%) 493 (18%) 2800
Those who self reported having white marks 131 (33%) 111 (28%) 85 (21%) 70 (18%) 397
Those who reported no white marks 1065 (63%) 247 (15%) 104 (6%) 271 (16%) 1687
Those whose self reported white marks bothered them 21 (22%) 32 (34%) 25 (27%) 16 (17%) 94
Those who reported not bothered by white marks 97 (35%) 74 (27%) 56 (20%) 49 (18%) 276

*3 participants did not provide an answer.

Davies et al.

Davies et al. BMC Oral Health 2012 12:41   doi:10.1186/1472-6831-12-41

Open Data