Appendix 1.

Frequency of participants reporting the minimum and maximum levels of potential effect measure modifiers

	Frequency at Minimum Level “Low” N (%)	Frequency at Maximum Level “High” N (%)
Enjoyment of family meals [Range = 1–4]	214 (8.0)	1002 (36.0)
Family functioning [Range = 1–4]	36 (1.0)	483 (17.0)
Weight talk in the home [Range = 1–4]	813 (30.0)	19 (1.0)
Family weight-related teasing [Range = 1–5)	1608 (59.0)	147 (5.0)
Parent-led conversations about weight [Range = 1–5]	708 (30.0)	50 (2.0)
Parental food restriction [Range = 1–4]	372 (16.0)	69 (3.0)
Parental pressure-to-eat [Range = 1–4]	259 (11.0)	151 (6.0)
Parental dieting behaviors [Range = 1–5]	1091 (46.0)	176 (7.0)