The Index of Relative Socio-Economic Advantage and Disadvantage (IRSAD)
Visit 1 Lowest Tertile n=495 Middle Tertile n=324 Upper Tertile n=1,183 p value
Number of children with at least one 01 surface     32 (6.5%)     10 (3.1%)     62 (5.2%)     0.10
02 surface 227 (45.9%) 109 (33.6%) 397 (33.6%) <0.01
03 surface 70 (14.1%) 29 (9.0%) 68 (5.7%) <0.01
04 surface 61 (12.3%) 18 (5.6%) 41 (3.5%) <0.01
05 surface 62 (12.5%) 24 (7.4%) 43 (3.6%) <0.01
06 surface 22 (4.4%) 9 (2.8%) 13 (1.1%) <0.01
Fluoride applied 262 (52.9%) 116 (35.8%) 510 (43.1%) <0.01
Referral for further dental procedures 103 (20.8%) 42 (13.0%) 113 (9.6%) <0.01
Table 1: Comparison of tooth surfaces for children attending Kindergartens in postcodes linked to the lowest, middle and upper tertile of Index of Relative Socio-Economic Advantage and Disadvantage (IRSAD) for he Kindergartens in 2014