Table 3.

Association of body dysmorphic disorder screening with school grade and body parts of concern (N = 495).

Factor	Level	n	BDD-positive screening			p-value
			Freq.	%	OR
School grade	S1	122	12	9.8	(ref)	0.621
	S2	179	23	12.8	1.35
	S3	194	26	13.4	1.42
Skin concern	No	404	27	6.7	–	<0.001*
	Yes	91	34	37.4	8.33
Hair concern	No	442	48	10.9	–	0.004*
	Yes	53	13	24.5	2.67
Nose concern	No	448	41	9.2	–	<0.001*
	Yes	47	20	42.6	7.35
Teeth concern	No	446	46	10.3	–	<0.001*
	Yes	49	15	30.6	3.84
Body shape concern	No	449	48	10.7	–	0.001*
	Yes	46	13	28.3	3.29
Obesity/overweight concern	No	477	52	10.9	–	<0.001*
	Yes	18	9	50.0	8.17
Other concern	No	484	58	12.0	–	0.143F
	Yes	11	3	27.3	2.75
No. of aspects of concern	0	291	0	0.0	NC	<0.001*
	1	115	25	21.7	NC
	2	72	29	40.3	NC
	3	12	4	33.3	NC
	4+	5	3	60.0	NC

S1: 1st year secondary school; OR: odds ratio; NC: not calculated.