Table 4. Multiple linear regression models for the association between mean HbA1c (dependent variable), PHQ-9 score and SCOFF positive screening results for eating disorders (independent variables).

	Model 1		Model 2		Model 3		Model 4		Model 5
	ß (95% CI)	p	ß (95% CI)	p	ß (95% CI)	p	ß (95% CI)	p	ß (95% CI)	p
Male Patients
PHQ-9 score			0.169	<0.001	0.163	<0.001	0.166	<0.001	0.141	0.006
			(0.087; 0.252)		(0.080; 0.245)		(0.082; 0.251)		(0.043; 0.239)
SCOFF positive	0.815	0.155			0.770	0.115	0.735	0.180	0.738	0.145
	(-0.315; 1.946)				(-0.191; 1.731)		(-0.248; 1.718)		(-0.260; 1.737)
age							-0.085	0.631	0.023	0.911
							(-0.438; 0.268)		(-0.393; 0.440)
diabetes duration							0.073	0.649	0.017	0.922
							(-0.244; 0.389)		(-0.332; 0.366)
BMI									-0.019	0.715
									(-0.124; 0.085)
insulin pump therapy									0.220	0.501
(yes vs. no)									(-0.429; 0.868)
socioeconomic status
(reference: high)
low									0.702	0.146
									(-0.250; 1.653)
middle									0.740	0.036
									(0.049; 1.432)
family structure/residence: living …
(reference: with both parents)
with mother or father (and her/his partner)									0.063	0.881
									(-0.776; 0.903)
alone or with partner in an apartment									-0.045	0.957
									(-1.723; 1.632)
Female Patients
PHQ-9 score			0.069	0.071	0.056	0.165	0.054	0.183	0.035	0.410
			(-0.006; 0.143)		(-0.024; 0.136)		(-0.026; 0.134)		(-0.049; 0.119)
SCOFF positive	0.508	0.143			0.334	0.376	0.351	0.356	0.627	0.137
	(-0.175; 1.191)				(-0.410; 1.078)		(-0.400; 1.102)		(-0.203; 1.456)
age							0.292	0.174	-0.366	0.120
							(-0.714; 0.131)		(-0.830; 0.097)
diabetes duration							0.188	0.355	0.193	0.354
							(-0.213; 0.589)		(-0.219; 0.605)
BMI									-0.060	0.289
									(-0.172; 0.052)
insulin pump therapy									0.004	0.989
(yes vs. no)									(-0.656; 0.665)
socioeconomic status
(reference: high)
low									1.228	0.010
									(0.300; 2.156)
middle									0.410	0.340
									(-0.438; 1.259)
family structure/ residence: living …
(reference: with both parents)
with mother or father (and her/his partner)									-0.524	0.214
									(-1.355; 0.308)
alone or with partner in an apartment									-0.152	0.760
									(-1.132; 0.829)
other									-0.210	0.822
									(-2.059; 1.638)

Data are presented as regression coefficient β (95% CI) with p-value; separate models for PHQ-9 score and MDS/ODS as independent variables. Model 1: SCOFF (ED) (unadjusted). Model 2: PHQ-9 score (unadjusted). Model 3: SCOFF + PHQ-9 score (unadjusted). Model 4: Model 3 + age + diabetes duration. Model 5: Model 4 + BMI + insulin pump therapy + socioeconomic status + family structure/residence