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Table 2 Physical activity by domain measured by a self-administered questionnaire, and intensities measured by the GT3X+ accelerometers, in 26 women 3 months pre- (T1) and 9- (T2) and 48 months (T3) post Roux-en-Y Gastric Bypass surgery (RYGB)

From: Accelerometer-measured versus self-reported physical activity levels in women before and up to 48 months after Roux-en-Y Gastric Bypass

Variables

(N = 26)

T1: Pre-RYGB

Mean (SD)

T2: 9 months post-RYGB

Mean (SD)

T3: 48 months post-RYGB

Mean (SD)

Difference T1 to T2 (95% CI)a

P-valueb

Difference T1 to T3 (95% CI)a

P-valueb

Difference T2 to T3 (95% CI)a

P-valueb

Questionnaire (minutes/day)

 Inactive leisure time (TV/reading)

131.5 (79.2)

129.2 (88.1)

120.0 (76.4)

−2.3 (−29.3–24.7)

P = 0.963

− 11.5 (− 42.2–19.1)

P = 0.366

−9.2 (− 43.3–24.8)

P = 0.787

 Household work

83.1 (54.5)

122.3 (76.3)

103.8 (72.6)

39.2 (16.6–61.9)

P = 0.002

20.8 (− 6.6–48.1)

p = 0.128

−18.6 (− 51.9–15.0)

P = 0.121

 Active leisure time (walking/bicycling)

29.6 (35.7)

39.4 (38.6)

34.6 (27.2)

9.8 (− 5.3–24.9)

p = 0.109

5.0 (− 11.6–21.6)

P = 0.254

−4.8 (− 20.1–10.5)

P = 0.885

 Exercise

8.7 (8.7)

17.0 (10.9)

17.8 (13.1)

8.2 (2.4–14.1)

P = 0.004

9.1 (2.9–15.2)

p = 0.002

0.8 (−5.6–7.2)

P = 0.865

 MVPA total (active leisure time + exercise)

38.4 (36.3)

56.4 (43.2)

52.4 (31.1)

18.0 (− 0.8–36.9)

P = 0.047

14.1 (− 3.9–32.0)

P = 0.091

−4.0 (− 21.7–13.7)

P = 0.869

Accelerometers (minutes/day)

 MVPA

34.5 (22.6)

36.6 (30.2)

33.3 (22.6)

2.0 (−9.1–13.2)

P = 0.869

−1.2 (− 11.2–8.7)

P = 0.849

−3.3 (− 16.3–9.7)

P = 0.929

 Light physical activity

429.3 (96.9)

422.2 (80.3)

430.6 (101.6)

− 7.0 (− 39.1–25.0)

P = 0.869

1.3 (− 28.6–31.2)

P = 0.970

8.3 (− 23.4–40.1)

P = 0.929

 Sedentary time

406.4 (107.4)

431.4 (95.3)

424.2 (118.3)

24.9 (−4.8–54.6)

P = 0.075

17.8 (− 15.5–51.2)

P = 0.409

−7.1 (− 37.8–23.5)

P = 0.354

 Total physical activity

689.5 (228.3)

671.7 (243.3)

674.1 (244.6)

−17.8 (− 105.0–69.5)

P = 0.304

−15.4 (− 101.3–70.5)

P = 0.751

2.4 (− 96.9–101.7)

P = 0.672

  1. aConfidence interval derived from paired T-test.bP-values between measurement points calculated with Wilcoxon Signed-Ranked test