Table 2.

Intervention mode and content for participant and partner interventions.

	Class	Participant only arm		Partner-assisted arm
		Modea	Content	Modea	Content
Week	Initiation
0	1	G,IP	•Randomization disclosure •Introduction to reduced-calorie diet	G,IP	•Randomization disclosure •Introduction to reduced-calorie diet
2	2	G,IP	•Interpreting the food label •SMART goals	G,IPb, a	•Interpreting the food label •SMART goals •Role of partner in weight loss •Shared decision making skills
4	3	G,IP	•Importance of tracking diet & activity •Setting a weight loss goal	GIPb	•Importance of tracking diet & activity •Setting a weight loss goal •Sharing thoughts and feelings
6	4	G,IP	•Grocery store tour	G,IP	•Grocery store tour
8	5	G,IP	•Meal planning	G,IPb	•Meal planning •Role plays and couple conversations focused on support for meal planning and grocery shopping
10	6	G,IP	•Healthy cooking & modifying recipes	G,IP	•Healthy cooking & modifying recipes
12	7	G,IP	•Dining out strategies: fast/casual	G,IPb	•Dining out strategies: fast/casual •Role plays and couple conversations focused on support for dining out
14	8	G,IP	•Dining out: advanced	G,IP	•Dining out: advanced
16	9	G,IP	•Physical activity	G,IPb	•Physical activity •Role plays and couple conversations focused on support for physical activity
18	10	G,IP	•Eating more fruits and vegetables	G,IP	•Eating more fruits and vegetables
20	11	G,IP	•Mindful eating	G,IPb	•Mindful eating •Role plays and couple conversations focused on support for mindful eating
22	12	G,IP	•Emotional eating	G,IP	•Emotional eating
24	13	G,IP	•Weight loss review	G,IP	•Weight loss review
Month	Maintenance
7	14	G,IP	•Maintaining weight loss	G,IPb	•Maintaining weight loss •Role of partner in weight loss maintenance
7		I,T	•Behavioral maintenance intervention	I,Tb	•Behavioral maintenance intervention •Support plan and joint problem-solving
8	15	G,IP	•Habits of successful losers	G,IPb	•Habits of successful losers •Couple conversations focused on support for healthy habits
8		I,T	•Behavioral maintenance intervention	I,Tb	•Behavioral maintenance intervention •Support plan and joint problem-solving
9		G,IP	•Relapse prevention	G,IPb	•Relapse prevention •Couple conversations focused on support for relapse prevention •Review of couples communication skills
9		I,T	•Behavioral maintenance intervention	I,Tb	•Behavioral maintenance intervention •Support plan and joint problem-solving
10		I,T	•Behavioral maintenance intervention	I,T	•Behavioral maintenance intervention
11		I,T	•Behavioral maintenance intervention	I,T	•Behavioral maintenance intervention
12		I,T	•Behavioral maintenance intervention	I,Tb	•Behavioral maintenance intervention •Support plan and joint problem-solving
14		I,T	•Behavioral maintenance intervention	I,T	•Behavioral maintenance intervention
16		I,T	•Behavioral maintenance intervention	I,T	•Behavioral maintenance intervention
18		I,T	•Behavioral maintenance intervention	I,Tb	•Behavioral maintenance intervention •Support plan and joint problem-solving

^aG = group, IP = in person, T = telephone, I = individual.

^bPartner participates.