Table 1

Quantitative outcomes for all participants throughout the study period

	Participant 1	Participant 2	Participant 3	Participant 4	Participant 5	Participant 6	Participant 7	Participant 8
Intervention group status	Intervention	Intervention	Waiting list	Waiting list	Intervention	Intervention	Waiting list	Waiting list
Initial screening
BMI*	28.05	33.46	33.99	25.22	29.29	25.28	24.02	24.05
IOTF classification†	2	2	2	1	2	1	1	1
Baseline assessment
K-SADS†‡	MDD	MDD	MDD	MDD	DD-NOS	MDD	None	MDD
BMI†	29.79	34.93	N/A	N/A	28.66	25.00	N/A	N/A
IOTF classification†	2	2	N/A	N/A	2	1	N/A	N/A
MFQ-SF§	9	10	8	10	4	25	13	11
HoNOSCA†	15	16	8	11	6	16	8	12
CGAS2†‡	65	58	60	67	74	60	69	75
Second baseline for waiting list controls
BMI†	N/A	N/A	37.57	25.94	N/A	N/A	23.15	26.78
IOTF classification†	N/A	N/A	2	1	N/A	N/A	1	1
MFQ-SF§	N/A	N/A	9	7	N/A	N/A	5	14
HoNOSCA†	N/A	N/A	8	9	N/A	N/A	6	7
CGAS†	N/A	N/A	70	70	N/A	N/A	72	60
Intervention session 4
BMI†	29.71	35.17	39.25	26.95	28.85	24.94	23.73	26.91
IOTF classification†	2	2	2	1	2	1	1	1
MFQ-SF§	6	9	14	7	2	21	4	12
CGAS†	65	50	61	62	75	54	72	65
Intervention session 8
BMI†	30.03	24.51	40.75	26.57	27.35	–	23.62	27.29
IOTF classification†	2	2	2	1	2	–	1	1
MFQ-SF§	3	5	13	7	2	–	5	12
CGAS†	74	62	56	79	78	–	74	62
Final session (endpoint)
BMI†	30.31	35.21	–	26.55	27.95	24.52	23.23	27.93
IOTF classification†	2	2	–	1	2	1	1	1
MFQ-SF§	0	3	–	7	2	18	2	9
HoNOSCA†	3	5	–	5	1	–	6	10
CGAS†	82	65	–	77	85	70	84	70
Follow-up
BMI†	29.40	34.95	39.40	26.06	–	24.84	23.25	27.51
IOTF classification2†	2	2	2	1	–	1	1	1
MFQ-SF§	1	7	11	9	–	23	5	7

‘–’ indicates missing data.
BMI adjusted for age and sex to assess overweight/obesity; IOTF (Extended IOTF) classification: 1=overweight; 2=very overweight/obese; CGAS: 51–60=some noticeable problems (problems in more than one area); 61–70=some problems (problems in one area); 71–80=doing all right (minor impairment); 81–90=doing well.
*Self-report by adolescent or assessed in private by a member of the research team.
†Assessed by a member of the research team.
‡Consensus coding by the psychiatrist and a member of the research team.
§Self-report by adolescent.
BMI, Body Mass Index; CGAS, Children’s Global Assessment Scale; DD-NOS, depressive disorder not otherwise specified; HoNOSCA, Health of the Nation Outcome Scales for Children and Adolescents; IOTF, International Obesity Task Force; K-SADS, Kiddie-Sads-Present and Lifetime Version; MDD, major depressive disorder; MFQ-SF, Mood and Feelings Questionnaire—Short Form; N/A, not applicable.