. 2023 May 26;25:e42238. doi: 10.2196/42238

Table 4.

Effects of conversational agents (CAs) on obesity-related outcomes of the included randomized controlled trials.

Outcomes	Study	Results
Weight change (kg)	Wright et al [40], 2013	For children (n=43): MD^a −0.9 (95% CI −2.43 to 0.63); for parents (n=43): MD −1.60 (95% CI −8.93 to 5.73)
Diet	Wright et al [40], 2013	Total calorie intake (kcal per day) change (n=43): MD −214 (95% CI −471.9 to 43.9); total fat intake (mg per day) change (n=43): MD −9.5 (95% CI −24.18 to 5.18)
Physical activity	Wright et al [40], 2013	Screen time (hours per day) change (n=43): MD −2.2 (95% CI −4.32 to −0.08)
Physical activity	Piao et al [43], 2020	SRHI^b change (n=106): MD 6.70 (95% CI 3.47 to 9.93)

^aMD: mean difference.

^bSRHI: Self-Report Habit Index. The scores range from 7 to 84 points; the higher the score, the higher the habit strength of a particular action.