Table 2.

Total OHRQoL (CPQ_11–14) scores by sociodemographic and general health variables

Sociodemographic variables	Mean	SD	Median	IQR	P-valuea
Total score	24.6	17.2	21	12–34	---
Age (years)
11-13	25.1	17.2	21	12–33	0.328
14-15	24.2	17.2	20	12–35
Gender
Male	25.0	17.6	21	12–35	0.357
Female	24.2	16.7	20	12–33
Birth order
First	24.5	17.0	20	12–34	0.156
2-3	23.7	17.1	20	11–33
4+	25.7	17.3	23	12–36
Number of siblings
0-3	23.3	16.5	19	12–32	0.002b
4-5	23.8	17.0	20	11–32
6+	27.2	18.0	24	13-37
Family income
Low	30.3	19.7	27	15–43	<0.001c
Middle	24.6	16.9	21	12–34
High	22.2	16.6	19	10–31
Mother’s education
Less than secondary	27.0	18.4	22	13–37	0.007d
Secondary	24.3	16.7	21	12–34
University	23.2	16.6	19	12–31
Father’s education
Less than secondary	29.3	18.8	28	14–41	<0.001e
Secondary	24.0	17.0	20	12–33
University	23.7	16.5	20	12–33
General health variables
Health problems
Yes	28.3	18.4	26	14–39	<0.001
No	23.7	16.6	20	12–33
Hospitalization
Yes	27.2	17.8	23	14–38	0.001
No	23.7	16.8	20	12–33

Abbreviations: OHRQoL Oral health related quality of life; CPQ _11–14 Child Perceptions Questionnaire for 11- to 14-year-olds; SD Standard deviation; IQR Interquartile range.

^aTwo-sample t-test, One-way ANOVA test and Tukey post-hoc test were used

^b0–3 < 6+; 4–5 < 6+

^cHigh < Low; Middle < Low

^dUniversity < Less than secondary

^eSecondary < Less than secondary; University < Less than secondary