Table 5.

Cox regression model analysis of user survival using the SIMPLe app 1.5^a.

Characteristics		Coefficient	Exp (coefficient; 95% CI)	P value	Concordance, mean (SE)
Age		–0.016	0.984 (0.971-0.998)	.02	0.589 (–0.019)
Country					N/Ab
	Spain	—c	—	—
	Chile	–0.143	0.867 (0.588-1.278)	.47
	Argentina	0.091	1.096 (0.748-1.605)	.63
	Mexico	–0.121	0.886 (0.495-1.585)	.68
	Colombia	0.318	1.375 (0.797-2.37)	.25
	Other	0.141	1.152 (0.779-1.703)	.47
Anxiety disorder		Yes	0.233	1.262 (0.975-1.634)	.07
Antipsychotic		Yes	0.334	1.396 (1.058-1.843)	.02

^aSchoenfeld residuals to check the proportional-hazards assumption: age (χ²₁=0.006; P=.94), anxiety disorder (χ²₁=2.7; P=.10), and antipsychotic (χ²₁=0.1; P=.72).

^bN/A: not applicable.

^cOur Cox model analyzed the risk of discontinuing the app use that participants from different nationalities had in comparison with Spanish participants. This row was maintained in the table to make clear that Spain was not included in the category Other.