Table 5

Frequency, incidence and incidence density ratio of caries affected children and teeth
Observation period (5 Years)
n(Children) 1830
Number of new caries affected cases 464
Children-years of observation 7990
IDp/100 children at risk 5.80
n(teeth) 44829
Number of new caries affected teeth 1038
Teeth-years of observation 137099.7
IDt/100 teeth at risk 0.76

IDp Incidence density for person.

IDt Incidence density for teeth.

Masood et al.

Masood et al. BMC Public Health 2012 12:989   doi:10.1186/1471-2458-12-989

Open Data