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. 2020 Apr 3;3(1):e17142. doi: 10.2196/17142

Table 3.

Analysis of subscales of Self-Care of Heart Failure Index.

Subscale	Baseline, mean (SD)	Postintervention, mean (SD)	P value	Difference score	Clinically relevant^a
Maintenance (N=12)	63.33 (15.50)	72.70 (15.62)	.15	9.37	Yes
Management (N=9)	70.0 (7.07)	85.00 (14.36)	Presample too small^b	15.00	Yes
Confidence (N=12)	83.86 (13.51)	90.90 (10.90)	.17	7.04	Approaches

^aClinical relevance defined as at least an 8-point difference in baseline to postintervention.

^bAt least half the items were missing from participant responses.