Apps to improve diet, physical activity and sedentary behaviour in children and adolescents: a review of quality, features and behaviour change techniques

Table 2 Correlations between app quality, number of app features and BCTs

	Number of BCTs	Number of app features
MARS engagement score	0.74**	0.70**
MARS functionality score	0.04	−0.04
MARS aesthetics score	0.29	0.21
MARS information quality score	0.48*	0.35
MARS total score	0.54**	0.42*
Number of app features	0.77**	1.00

Abbreviations: MARS mobile app rating scale, BCTs behaviour change techniques
**p < 0.01
*p < 0.05

ISSN: 1479-5868