Table 3.

Distribution of teeth with apical periodontitis (AP), root-filled teeth (RFT), root-filled teeth with AP (RFT-AP) and untreated teeth with AP (UT-AP) by gender

	No. of teeth	AP (%)	RFT (%)	RFT-AP (%)	UT-AP (%)
Females	4970	106 (2.1)	287 (5.8)	62 (21.6)	44 (0.9)
Males	4420	153 (3.5)	317 (7.2)	82 (25.9)	71 (1.7)
Total	9390	259 (2.8)	604 (6.4)	144 (23.8)	115 (1.3)†
OR females		1.0	1.0	1.0	1.0
OR males		1.6**	1.3**	1.3*	1.9**

RFT-AP of all RFTs. OR, odds ratio.

^*P > 0.05; **P < 0.01.

^†RFT-AP versus UT-AP: P < 0.01.