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. 2019 Jan 31;7(1):e9865. doi: 10.2196/mhealth.9865

Table 3.

Physical activity levela analysis recorded by Fitbit Charge HR in RA-MIDCAB and OPCAB patients.

Time point RA-MIDCABb OPCABc P value
median (min, max) n median (min, max) n  
Overall analysis
  Week 1 1.39 (1.05, 1.71) 10 1.29 (1.08, 1.59) 11 .36
  Week 2 1.41 (1.04, 1.63) 10 1.32 (1.04, 1.60) 10 .36
  Week 5 1.52 (1.13, 1.90) 8 1.44 (1.16, 1.80) 9 .5
Analysis without dropouts
  Week 1 1.39 (1.05, 1.71) 8 1.26 (1.08, 1.59) 9 .4
  Week 2 1.41 (1.04, 1.63) 8 1.23 (1.04, 1.60) 9 .42
  Week 5 1.52 (1.13, 1.90) 8 1.44 (1.16, 1.80) 9 .5

aPhysical activity level calculated as total energy expenditure divided by basic metabolic rate.

bRA-MIDCAB: robotically assisted minimally invasive direct coronary artery bypass.

cOPCAB: off-pump coronary artery bypass; data are reported as median (min, max).