Table 2. Association between the variables sex and occurrence of the lingual canal in incisor teeth in CBCT scans of the evaluated patients.

Variable	Occurrence of the lingual canal		χ2(gl)
	No (ni= 221 (64.62%))	Yes (ni= 121 (35.38%))
Sex
Female (ni(%)) Male (ni(%))	145 (68.72) 76 (58.02)	66 (31.28) 55 (41.98)	4.05 (1)*

Notes.

n_i, Absolute frequency; %, Percentage; χ², chi-square; df, degrees of freedom; ns, Not significant.

^*p < 0.05.