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. 2016 Jul 28;4(3):e90. doi: 10.2196/mhealth.5241

Table 4.

Logistic regression analysis; associations between usage parameters and improvement in psychological flexibility.

Usage parameter Improvers
(n=38)
median (IQRa)		 Nonimprovers
(n=36)
median (IQR)		 ORb,c
(95% CI)		 P c ORd
(95% CI)		 P d
Number of usage sessions 27.5
(16.3-41.0)		 18.0
(10.0-23.8)		 1.05
(1.02-1.10)		 .005 1.08
(1.03-1.13)		 .002
Number of usage days 19.0
(13.0-28.3)		 11.5
(8.0-16.0)		 1.09
(1.03-1.15)		 .004 1.13
(1.05-1.21)		 .001
Number of usage weeks 8.0
(5.8-8.0)		 5.5
(4.0-7.0)		 1.38
(1.09-1.74)		 .007 1.48
(1.13-1.95)		 .005
Number of exercises 82.5
(51.8-148)		 51.5
(39.5-79.0)		 1.02
(1.00-1.03)		 .009 1.02
(1.01-1.04)		 .003
Total duration
of use, hours		 6.0
(3.7-11.1)		 4.0
(2.6-6.0)		 1.27
(1.08-1.51)		 .005 1.42
(1.14-1.76)		 .002
Session duration, minutes 13.5
(9.9-17.5)		 13.7
(9.6-17.7)		 0.99
(0.93-1.06)		 .84 0.97
(0.90-1.05)		 .48
Completion % 93
(86-98)		 83
(56-93)		 1.01
(0.99-1.03)		 .17 1.02
(1.00-1.05)		 .06
Being present % 21
(16-28)		 28
(21-38)		 0.99
(0.97-1.02)		 .61 0.99
(0.96-1.01)		 .33
Self as context % 21
(14-28)		 26
(21-36)		 0.93
(0.88-0.98)		 .006 0.90
(0.84-0.97)		 .005
Acceptance % 13
(11-20)		 11
(5-14)		 1.10
(1.03-1.19)		 .009 1.15
(1.04-1.27)		 .005
Cognitive defusion % 15
(11-19)		 11
(8-15)		 1.11
(1.02-1.20)		 .02 1.15
(1.03-1.27)		 .01
Values % 11
(9-14)		 11
(8-14)		 0.99
(0.91-1.07)		 .74 1.01
(0.92-1.11)		 .86
Committed action % 11
(7-13)		 9
(6-11)		 1.06
(0.97-1.17)		 .20 1.11
(0.98-1.25)		 .09
Usage pattern 2.1
(1.5-2.9)		 3.1
(1.9-5.7)		 0.88
(0.75-1.04)		 .15 0.92
(0.78-1.10)		 .37
Listen % 81
(55-91)		 81
(70-92)		 0.98
(0.96-1.01)		 .19 0.99
(0.96-1.01)		 .26

a IQR: interquartile range.

b OR: odds ratio.

c Unadjusted.

d Adjusted for baseline values of age, gender, 12-item General Health Questionnaire, Acceptance and Action Questionnaire II, and Acceptance and Action Questionnaire for Weight-Related Difficulties.