Journal of the Korean Academy of Child and Adolescent Psychiatry : eISSN 2233-9183 / pISSN 1225-729X

Table. 1.

Table. 1.

Demographic characteristics of control and ADHD subjects [N (%)]

Control subjects (N=408)ADHD subjects (N=136)† or χ2dfp
Sexχ2=0.091.766
 Male210 (51.5)72 (52.9)
 Female198 (48.5)64 (47.1)
Age (year), mean±SD29.86±8.1731.27±8.09†=1.75542.081
Duration of educationχ2=0.801.370
 ≤Middle school3 (0.7)6 (4.6)
 High school220 (54.5)55 (42.0)
 College149 (36.9)58 (44.3)
 ≥Graduate school32 (7.9)12 (9.1)
 Subtotal*404 (100.0)131 (100.0)
Income (10,000 won)χ2=4.083.253
 <10084 (23.7)19 (16.2)
 100-300123 (34.7)40 (34.2)
 300-50081 (22.9)35 (29.9)
 >50066 (18.7)23 (19.7)
 Subtotal*354 (100.0)117 (100.0)

: missing data were excluded from subtotal sum. SD : standard deviation, ADHD : attention-deficit hyperactivity disorder

J Korean Acad Child Adolesc Psychiatry 2015;26:295-310 https://doi.org/10.5765/jkacap.2015.26.4.295
© 2015 J Korean Acad Child Adolesc Psychiatry