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Table 2 Sitting time spent in specific contexts (h/day) as recalled over the past seven days and relative validity against monitored sitting time (activPAL) in Australian adults aged >35 years (n = 700)

From: Validity of a multi-context sitting questionnaire across demographically diverse population groups: AusDiab3

  Overall Weekday Weekend day
Median (25th, 75th percentile) Correlation (95 % CI) Median (25th, 75th percentile) Correlation (95 % CI) Median (25th, 75th percentile) Correlation (95 % CI)
Questionnaire, h/day
Work 0.71 (0.00, 3.57) ρ = 0.25 (0.17, 0.31) 0.83 (0.00, 4.80) ρ = 0.34 (0.27, 0.40) 0.00 (0.00, 0.00)a ρ = 0.07 (0.00, 0.14)
Transport 0.67 (0.33, 1.07) ρ = 0.07 (-0.01, 0.14) 0.60 (0.31, 1.00) ρ = 0.12 (0.05, 0.20) 0.50 (0.05, 1.00) ρ = -0.04 (-0.11, 0.04)
TV 1.71 (0.86, 2.50) ρ = 0.16 (0.09, 0.24) 1.70 (0.80, 2.60) ρ = 0.09 (0.01, 0.16) 2.00 (1.00, 2.50) ρ = 0.23 (0.16, 0.30)
Computer 0.43 (0.07, 1.00) ρ = 0.14 (0.06, 0.21) 0.40 (0.00, 1.00) ρ = 0.12 (0.05, 0.19) 0.25 (0.00, 1.00) ρ = 0.10 (0.03, 0.17)
“Other” sitting 1.43 (0.86, 2.14) ρ = 0.06 (-0.02, 0.13) 1.15 (0.64, 2.00) ρ = -0.01 (-0.09, 0.06) 1.96 (1.00, 2.71) ρ = 0.11 (0.04, 0.18)
Total (sum of above) Mean 6.85 (SD = 2.69) r = 0.46 (0.40, 0.52) Mean 7.34 (SD = 3.21) r = 0.49 (0.43, 0.54) Mean 5.62 (SD = 2.66) r = 0.25 (0.19, 0.32)
activPAL, h/day
Monitored sitting time Mean 8.86 (SD = 1.81) - Mean 8.96 (SD = 1.98) - Mean 8.48 (SD = 2.10) -
  1. Data for sitting times are median (25, 75 %) except where indicated as mean (SD). Spearman’s correlation (ρ), Pearson’s correlation (r), findings in bold are significant. aOnly 124 participants reported sitting for work on the weekend with median time of 1.50 h/day (25 %: 0.75, 75 %: 2.50) within those who worked