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Table 1 Characteristics of the study population by the sedentary status. Values are means (SD) unless otherwise stated. Variables with italics were included in PCA

From: Profiles of sedentary and non-sedentary young men – a population-based MOPO study

Characteristic

All (n = 616)

Sedentary, sitting time ≥ 5 h (n = 179)

Non-sedentary, sitting time ≤ 2 h (n = 172)

p*

Age (year)

17.9 (0.6)

17.9 (0.6)

17.9 (0.6)

0.272

Sosioeconomic status, N [%]

   

0.034

  Full-time student/employee

579 (94.0)

160 (89.4)

166 (96.5)

 

  Part-time student/employee

10 (1.6)

5 (2.8)

1 (0.6)

 

  Unemployed

27 (4.4)

14 (7.8)

5 (2.9)

 

Daily sitting time (hours)

3.8 (2.1)

6.3 (1.8)

1.7 (0.5)

<0.001

Physical activity, daily hours > 1 h, N [%]

490 (81.2)

128 (71.5)

150 (87.7)

<0.001

BMI (kg/m2)

22.9 (3.9)

23.1 (4.8)

22.9 (3.6)

0.908

Waist circumference (cm)

82.2 (9.8)

82.7 (11.7)

81.3 (8.8)

0.740

Body fat (%)

16.0 (7.7)

18.3 (9.0)

14.7 (6.7)

<0.001

Aerobic fitness (Polar Fitness Test, mL∙ min-1° kg-1)

53.4 (7.4)

51.3 (6.6)

56.1 (7.6)

<0.001

Grip strength (kg)

49 (9)

47 (8)

52 (9)

<0.001

Self-perceived fitness; similar/better, N [%]

449 (73.6)

97 (55.1)

151 (88.8)

<0.001

Self-perceived health; moderate/good, N [%]

567 (95.9)

157 (90.3)

161 (98.1)

<0.001

Depressive symptoms (RBDI)a

1.8 (3.7)

3.0 (5.2)

0.7 (1.8)

<0.001

Life satisfactionb

7.6 (2.8)

8.5 (3.3)

6.8 (2.3)

<0.001

Self-esteemc

6.5 (4.1)

5.3 (3.9)

8.1 (4.0)

<0.001

Diagnosed mental disorders, N [%]

19 (1.9)

11 (6.1)

2 (1.2)

0.020

EDId: Symptoms of bulimia (cut-off 4p), N [%]

34 (6.3)

15 (9.0)

7 (4.7)

0.132

EDI: Drive for thinness, N [%]

46 (8.4)

17 (10.6)

7 (4.7)

0.054

Postponed or exempted from military service due to medical reasons, N [%]

160 (27.6)

56 (34.6)

35 (21.3)

0.008

  1. *p-values (sedentary vs. non-sedentary group) independent samples t-test or crosstabs chi-squared tests. Fisher’s Exact Test was used, if n ≤ 5
  2. aModified Beck’s questionnaire (RBDI): higher score indicating more depressive symptoms
  3. bLife satisfaction: higher score indicating lower life satisfaction
  4. cSelf-esteem (RBDI): higher score indicating better self-esteem
  5. dEating Disorder Inventory (EDI)
  6. Numbers do not match due to missing values