. Author manuscript; available in PMC: 2018 Jul 1.

Published in final edited form as: Congenit Heart Dis. 2017 May 11;12(4):484–490. doi: 10.1111/chd.12469

Table 2.

Characteristics of overall app usage during the post-app period

Characteristics	App used (n=1345 visits)	App not used (n=25,294 visits)	p value
Male gender (%)	51%	45%	<0.0001
Age (years)	10.6 (4.4)	11.9 (4.8)	<0.0001
Height (cm)	141.3 (24.5)	144.9 (24.4)	<0.0001
Mean BMI (stdev)	22.2	21.7	p=0.49
SBP (mmHg)	109.9 (14.3)	107.2 (13.4)	<0.0001
SBP percentile	64%	54%	<0.0001
DBP (mmHg)	63.6 (8.6)	61.5 (8.7)	<0.0001
DBP percentile	57%	49%	<0.0001
BP >90^th percentile	26%	17%	<0.0001
BP >95^th percentile	15%	9%	<0.0001
BP >99^th percentile	5%	3%	<0.0001
SBP>120 or DBP>80	23%	16%	<0.0001
SBP>140 or DBP>90	2%	1%	0.0002

All data in mean (standard deviation) or proportions as appropriate.

P values from chi square for categorical variables or t-test for continuous.