Skip to main content
. 2019 Apr 29;45(2):108–115. doi: 10.5125/jkaoms.2019.45.2.108

Table 4. Relationship between disease stage and age groups.

Stage Age group (yr) Total
40-50 51-60 61-70 71-80
0 3 9 2 0 14
1 2 3 11 3 19
2 1 5 5 4 15
3 0 1 1 2 4
Total 6 18 19 9 52

χ2=17.73, P<0.05.