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

Table 3

Relationship between OHRQoL and sociodemographic variables.

Sociodemographics	Groups	Number of pupils	Impact on OHRQoL					value
			No		Yes
				%		%
Age (years)	12	95	94	98.9	1	1.1	16.454	<0.001
	13	160	140	87.5	20	12.5	—	—
	14	129	105	81.4	24	18.6	—	—
Sex	Male	178	170	95.5	8	4.5	16.739	<0.001
	Female	206	169	82.0	37	18.0	—	—
Overall	—	384	339	88.3	45	11.7	—	—

: number; %: percentage; OHRQoL: oral health-related quality of life; is significant.