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. 2019 Apr 4;26(7):655–666. doi: 10.1093/jamia/ocz019

Table 3.

Principal component analysis of all variables

Variable	Factor Loading
Variable	Component 1	Component 2	Component 3
App quality rating	.907^a
Overall satisfaction	.884^a
Intent to recommend	.756^a
Used menu	.416^a		.406
App social influence		.770^a
App outcome expectancy	.421	.662^a
Possibility of behavioral and cognitive changes in PMS management	.584	.595^a
PMS score		.580^a	.419
Possibility of behavioral and cognitive changes in dysmenorrhea management	.534	.556^a
App self-efficacy	.347	.500^a	.311
The number of days with records		.420^a
Second day of menstruation			.650^a
First day of menstruation			.621^a
The number of dysmenorrhea relief methods			.528^a
Eigenvalue	3.36	2.63	1.69
Variance, %	24.02	18.80	12.05
Cumulative variance, %	24.02	42.82	54.87

^a

Variable contained in the component.

PMS: premenstrual syndrome.