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Table 4 Personal activity intelligence (PAI) metrics during the blinded and un-blinded phases

From: Effect of personal activity intelligence (PAI) monitoring in the maintenance phase of cardiac rehabilitation: a mixed methods evaluation

 

Blinded mean (SD)

Un-blinded mean (SD)

Mean difference (95% CI)

p-value

Total PAI

68.4 (65.2)

97.6 (73.5)

29.2 (7.2, 51.2)

0.012*

PAI earned/day

9.9 (8.47)

12.0 (7.49)

2.1 (0.3, 4.0)

0.027*

PAI in low intensity

1.5 (1.65)

1.4 (1.5)

-0.5 (-0.2,0.2)

0.71

PAI in medium intensity

5.4 (5.1)

6.4 (5.2)

1.0 (-0.3–2.1)

0.07

PAI in high intensity

3.1 (4.4)

4.2 (3.7

1.0 (0.4,3.0)

0.15

 

Median (IQR)

Median (IQR)

p-value

Days > 25 PAI (%)

71.0 (5.77,100)

100 (73.5,100)

 

0.023*

Days > 50 PAI (%)

18.3 (0,100)

80.77 (28.9,100)

 

0.015*

Days > 75 PAI (%)

0 (0,100)

45.39 (0,100)

 

0.116

Days > 100 PAI (%)

0 (0, 94.65)

10 (0,100)

 

0.344

  1. SD, standard deviation; CI, confidence interval; IQR, inter quartile range, *statistically significant p < 0.05