Adolescent Weight Status and Self-Reported School Performance in South Korea

Table 1

Summary statistics of the study sample (𝑁=142783).

Variables	Underweight	Normal weight	Overweight	Obesity
	(𝑛=9649)	(𝑛=114291)	(𝑛=12788)	(𝑛=6055)
Self-reported school performance
High	13.4	13.3	11.3	9.5
Mid-high	23.3	26.0	24.7	21.2
Middle	26.1	26.9	25.3	24.7
Mid-low	24.3	23.3	26.1	27.5
Low	12.9	10.4	12.6	17.1
Body image stress	9.1	9.9	14.1	17.7
Health status
Excellent	10.8	17.3	17.7	13.9
Good	35.9	46.6	45.4	42.1
Fair	36.0	28.1	28.3	31.6
Poor	15.8	7.6	8.1	11.2
Very poor	1.6	0.5	0.5	1.2
Father’s education
College or more	39.7	42.9	40.3	34.9
High school	39.1	38.4	39.9	42.3
Middle school	7.1	6.9	7.5	9.6
Don’t know	14.1	11.8	12.3	13.2
Mother’s education
College or more	27.1	29.2	27.0	24.0
High school	49.6	50.3	51.3	50.4
Middle school	8.7	8.1	8.9	11.7
Don’t know	14.6	12.4	12.9	13.9
Household economic status
High	6.4	6.9	7.3	6.0
Middle	87.8	88.1	86.6	85.7
Low	5.9	5.0	6.1	8.3
Number of cars at home
0	19.3	16.8	17.9	19.7
1	58.7	58.0	56.7	56.0
2 or more	22.0	25.1	25.4	24.4
No bedroom for the student	25.5	23.2	23.7	24.2
Number of computers at home
0	4.4	3.6	3.6	4.2
1	62.4	62.5	61.9	62.7
2	26.4	26.8	27.6	26.4
3 or more	6.9	7.1	7.0	6.7
Residence area
Metropolitan	50.2	51.5	53.3	53.8
Rural	7.6	7.2	7.2	7.7
Mid-sized town	42.2	41.3	39.6	38.5

Notes: All numbers are in percent. Sampling weights are applied.