Impact of Malocclusions on the Oral Health-Related Quality of Life of Early Adolescents in Ndola, Zambia

Table 4

Prevalence of malocclusions according to sociodemographics of participants.

Sociodemographics	Groups	Number of pupils	Malocclusions					value
			Absence		Presence
				%		%
Age (years)	12	95	68	71.6	27	28.4	0.025	0.987
	13	160	116	72.5	44	27.5	—	—
	14	129	93	72.1	36	27.9	—	—
Sex	Male	178	118	66.3	60	33.7	5.636	0.018
	Female	206	159	77.2	47	22.8	—	—
Overall	—	384	277	72.1	107	27.9	—	—

: number; %: percentage; is significant.