Table 3.

Estimated marginal means or totals for outcome variables at each time point for study participants (N = 115).

Variable	Time 1, M or total (SE or % n)		Time 2, M (SE or % n)		Time 3, M (SE or % n)
	Experimental 1, N = 14	WLC, N = 42	Experimental 1, N = 14	WLC/Experimental 2, N = 42	Experimental 2, N = 14
CDAT	12.01 (0.35)	12.04 (0.30)	13.96 (0.65)*	14.78 (0.40)*	11.78 (0.68)*
Accidental	9 = No (64%); 5 =  Yes	31 = No (74%); 11 = Yes	11 = No (79%); 3 = Yes	28 = No (67%); 14 = Yes*	14 = No (100%); 0 = Yes
Purposeful	12 = No (86%); 2 = Yes	40 = No (95%); 2 = Yes	13 = No (93%); 1 = Yes*	40 = No (95%); 2 = Yes	14 = No (100%); 0 = Yes
Negative GI symptoms	6 = No (43%); 8 = Yes	12 = No (29%); 30 = Yes	8 = No (57%); 6 = Yes*	7 = No (17%); 35 = Yes*	—
CD-QoL	52.05 (2.38)	53.90 (2.40)	62.48 (3.34)*	47.56 (2.99)	53.48 (2.84)
SRE	96.90 (0.59)	96.71 (0.63)	96.07 (1.47)	96.18 (0.87)	97.62 (0.52)*
Depression	50.02 (1.36)	51.63 (1.10)	44.88 (2.87)	52.44 (1.56)	48.96 (1.68)*
Anxiety	48.53 (1.67)	47.90 (1.29)	39.69 (3.39)*	49.25 (1.52)	47.16 (2.11)

Accidental and purposeful consumption of gluten are reported in total number of participants in each group that reported consuming gluten that way. Time 3 refers to responses from participants in the wait list control (WLC) group after having the opportunity to use the MyHealthyGut app for a one-month period. See Figure 1 for participant flow through the study for more information.

*Denotes a significant change between the two time points.

— indicates that data for this outcome were missing at time 3 due to a technological error.

CDAT: celiac dietary adherence test; CD-QoL: Celiac disease quality of life; SRE: self-regulatory efficacy.