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Table 5 Test-retest reliability of PIN3 physical activity questionnaire using intraclass correlation coefficients (ICC) with 95% confidence intervals (CI) (n = 109)

From: Measuring physical activity among pregnant women using a structured one-week recall questionnaire: evidence for validity and reliability

  Test retest reliability
  ICC (95% CI)
Overall:  
hours/week using perceived intensity  
   Total 0.84 (0.78, 0.89)
   Moderate to vigorous 0.56 (0.42, 0.68)
   Moderate 0.54 (0.39, 0.66)
   Vigorous 0.40 (0.23, 0.55)
MET-hours/week using absolute intensity  
   Total 0.84 (0.77, 0.89)
   Moderate to vigorous (MET> = 3) 0.82 (0.75, 0.87)
Moderate 0.82 (0.75, 0.88)
Vigorous 0.75 (0.66, 0.82)
   Moderate to vigorous (MET> = 4.8) 0.74 (0.64, 0.82)
Moderate 0.72 (0.61, 0.80)
Vigorous 0.73 (0.63, 0.81)
By Mode of Physical Activity:  
Work activity:  
hours/week using perceived intensity  
   Total 0.56 (0.41, 0.67)
   Moderate to vigorous 0.75 (0.65, 0.82)
MET-hours/week using absolute intensity  
   Total 0.59 (0.46, 0.70)
   Moderate to vigorous (MET> = 3) 0.59 (0.45, 0.70)
   Moderate to vigorous (MET> = 4.8) 0.60 (0.47, 0.71)
Recreational activity:  
hours/week using perceived intensity  
   Total 0.86 (0.80, 0.90)
   Moderate to vigorous 0.89 (0.84, 0.92)
MET-hours/week using absolute intensity  
   Total 0.85 (0.79, 0.90)
   Moderate to vigorous (MET> = 3) 0.83 (0.77, 0.88)
   Moderate to vigorous (MET> = 4.8) 0.81 (0.73, 0.86)
Outdoor household activity:  
hours/week using perceived intensity  
   Total 0.91 (0.88, 0.94)
   Moderate to vigorous 0.76 (0.67, 0.83)
MET-hours/week using absolute intensity  
   Total 0.89 (0.85, 0.93)
   Moderate to vigorous (MET> = 3) 0.88 (0.83, 0.92)
   Moderate to vigorous (MET> = 4.8) 0.80 (0.72, 0.86)
Indoor household activity:  
hours/week using perceived intensity  
   Total 0.67 (0.55, 0.76)
   Moderate to vigorous 0.39 (0.22, 0.54)
MET-hours/week using absolute intensity  
   Total 0.58 (0.45, 0.70)
   Moderate to vigorous (MET> = 3) 0.36 (0.18, 0.51)
   Moderate to vigorous (MET> = 4.8) 0.62 (0.49, 0.72)
Child and adult care activity:  
hours/week using perceived intensity  
   Total 0.75 (0.65, 0.82)
   Moderate to vigorous 0.51 (0.36, 0.64)
MET-hours/week using absolute intensity  
   Total 0.75 (0.65, 0.82)
   Moderate to vigorous (MET> = 3) 0.75 (0.65, 0.82)
   Moderate to vigorous (MET> = 4.8) 0.96 (0.94, 0.97)
Transportation activity:  
hours/week using perceived intensity  
   Total 0.77 (0.68, 0.83)
   Moderate to vigorous 0.68 (0.57, 0.77)
MET-hours/week using absolute intensity  
   Total 0.77 (0.68, 0.83)
   Moderate to vigorous (MET> = 3) 0.77 (0.68, 0.83)
   Moderate to vigorous (MET> = 4.8) NA
  1. NA = not applicable because no transportation activities were > = 4.8 METS