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Table 1 Demographic and clinical characteristics of the patient cohort

From: Tracking physical activity using smart phone apps: assessing the ability of a current app and systematically collecting patient recommendations for future development

Baseline Characteristics

Of 274 participants with sufficient App data

Of the 54 participants who completed the TDF survey

Age (M, SD)

44.0 years, SD = 11.14

42 years, SD = 9.7

Gender

 Female

161, 67.3% retention

39

 Male

113, 44.4% retention

15

Ethnicity

 White British

44.5%

46.2%

 White Other

14.2%

12.9%

 Indian

5.1%

5.5%

 Pakistani

1.8%

1.8%

 Other Asian

1.5%

1.8%

 Caribbean

8.8%

9.2%

 African

4.7%

3.7%

 Any Other

12.0%

12.9%

 Mixed

7.3%

5.5%

Preoperative BMI Mean (SD)

46.5 BMI SD = 8.6

49.4BMI, SD = 9.5

Preoperative BMI Range

  < 35 kg/m2

8.0%

7.5%

 35-40 kg/m2

15.3%

13.4%

 40-50 kg/m2

46.4%

43.2%

  > 50 kg/m2

26.3%

34.5%

Type of Surgery

 Pre-Surgery

28.8%

31.1%

 Roux-en-Y Gastric Bypass

38.3%

34.7%

 Sleeve Gastrectomy

23.0%

25.7%

 Gastric Band

5.8%

4.5%

 Revision

4.0%

3.6%

Pre-Surgery Functional Status

Requires Walking Aid

11.0%

11.3%

 Can manage 1 or 2 flights of stairs

43.6%

46.5%

 Can manage 3 flights of stairs

23.4%

22.3%

 No limitation

22.0%

19.6%