Sex estimation using maxillary sinus volume for Chinese subjects based on cone-beam computed tomography

BMC Oral Health

Table 7 Sex Estimation equations based on maxillary sinus and tooth indexes

Independent Variable		Equation	SD	Accuracy	Sensitivity	Specificity	PPV	NPV
Maxillary Sinus	VL cm³	Logit(p)=-1.118 + 0.067VL	0.1071	67.50%	60.00%	75.00%	70.59%	65.22%
Maxillary Sinus	VR cm³	Logit(p)=-1.099 + 0.065VR	0.1159	72.50%	65.00%	80.00%	76.47%	69.57%
Tooth [4]	V23 cm³	Logit(p)=-8.497 + 14.118V23	0.7601	77.50%	90.00%	65.00%	72.00%	86.67%
	V33 cm³	Logit(p)=-6.003 + 11.367V33	0.5176	77.50%	80.00%	75.00%	76.19%	78.95%
	V23 + V33 cm³	Logit(p)=-8.914 + 10.457V23 + 4.923V33	0.8535	77.50%	90.00%	65.00%	72.00%	86.67%
	L23 mm	Logit(p)=-12.471 + 1.658L23	0.0014	72.50%	75.00%	70.00%	71.43%	73.68%
	L36 mm	Logit(p)=-19.68 + 1.798L36	0.0318	70.00%	70.00%	70.00%	70.00%	70.00%
	L23 + L36 mm	Logit(p)=-29.38 + 1.501L23 + 1.657L36	0.4882	65.00%	70.00%	60.00%	63.64%	66.67%

Logit(p) the probability value obtained by the equation, VL the volume of the left maxillary sinus, VR the volume of the right maxillary sinus; sensitivity, the proportion of samples tested as male; specificity, the proportion of samples tested as female, PPV the proportion of samples judged to be male by the test that is actually male, NPV the proportion of samples judged to be female by the test that is actually female

ISSN: 1472-6831