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. 2020 Jun 26;8(6):e15609. doi: 10.2196/15609

Table 2.

Least squares means of computed scores for each scale per week.

Scale	Week						P value
	1 (n=18)	2 (n=24)	3 (n=23)	4 (n=31)	8 (n=31)	12 (n=42)
PHCS-2^a, mean (SE)	6.8 (0.36)	6.5 (0.32)	6.6 (0.32)	6.0 (0.28)	6.4 (0.28)	6.6 (0.26)	.22
PROMIS-10^b mental, mean (SE)	10.3 (0.56)	11.4 (0.51)	11.1 (0.50)	10.2 (0.46)	10.8 (0.47)	10.4 (0.44)	.09
PROMIS-10 physical, mean (SE)	12.0 (0.47)	11.2 (0.45)	11.3 (0.44)	11.2 (0.40)	11.8 (0.41)	11.3 (0.39)	.17
PSS-4^c, mean (SE)	7.3 (0.54)	7.4 (0.50)	6.7 (0.50)	7.0 (0.46)	7.4 (0.46)	6.8 (0.44)	.44

^aPHCS-2: 2-item Perceived Health Competence Scale.

^bPROMIS-10: 10-item Patient Reported Outcome Measurement Information System.

^cPSS-4: 4-item Perceived Stress Scale 4.