Table 3

ORs for SI given disordered eating, body size perception or intention to lose weight in boys

	Non-adjusted		Adj. for age		Adj. for age/BMI		Adj. for age/BMI/SCL-5		Adj. for age/BMI/SCL-5/SES
	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI	OR	95% CI
Disordered eating
Poor appetite/Undereating	2.47*	1.53 to 3.98	2.47*	1.53 to 3.97	2.87*	1.75 to 4.71	2.10**	1.19 to 3.73	2.28**	1.26 to 4.11
Uncontrolled appetite/Overeating	1.95*	1.53 to 2.47	1.95*	1.53 to 2.47	2.09*	1.61 to 2.71	1.77*	1.34 to 2.35	1.81*	1.35 to 2.42
Body size perception
Very fat	4.45*	2.38 to 8.31	4.44*	2.38 to 8.30	5.68*	2.78 to 11.61	4.20*	1.96 to 9.02	4.43*	2.02 to 9.71
Quite fat	1.93*	1.56 to 2.39	1.93*	1.56 to 2.39	2.13*	1.63 to 2.78	1.74*	1.31 to 2.32	1.64**	1.22 to 2.21
Quite thin	1.44**	1.17 to 1.76	1.44**	1.17 to 1.76	1.53*	1.22 to 1.92	1.47**	1.16 to 1.87	1.51**	1.18 to 1.93
Very thin	3.15*	1.83 to 5.42	3.14*	1.83 to 5.41	3.82*	2.06 to 7.08	3.39*	1.75 to 6.53	2.99**	1.51 to 5.92
Intention to lose weight
Yes	2.04*	1.54 to 2.71	2.04*	1.54 to 2.71	2.24*	1.61 to 3.11	1.53**	1.06 to 2.21	1.47**	1.01 to 2.15
No, but I need to lose weight	2.01*	1.6 to 2.52	2.01*	1.60 to 2.53	2.23*	1.69 to 2.95	1.88*	1.39 to 2.55	1.83*	1.34 to 2.52

Reference category in the dependent variable: no SI. Reference categories in the predictors: Disordered eating: below cut-off for each trait. Body size perception: about the same as others. Intention to lose weight: No. Adjustment for SES from a subsample of 6852 participants. Primary level education used as reference category. *P<0.001, **p<0.05.
BMI, body mass index; SCL-5, The Five-item Hopkins Symptom Checklist; SES, socioeconomic status; SI, suicidal ideation.