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Table 1 Socio-demographic and behavioural characteristics of participants determined to be eligible with and without being required to obtain medical exercise clearance

From: What is the impact of obtaining medical clearance to participate in a randomised controlled trial examining a physical activity intervention on the socio-demographic and risk factor profiles of included participants?

Ā 

Overall sample

Initially eligible

Medical exercise clearance screened and eligible

Ā 
Ā 

Number of subjects

Mean (SD) or %

Number of subjects

Mean (SD) or %

Number of subjects

Mean (SD) or %

p Value

Sex

ā€ƒMale

176

34.9%

129

32.3%

47

44.8%

Ā 

ā€ƒFemale

328

65.1%

270

67.7%

58

55.2%

0.017

Age

504

50.8 (13.1)

399

48.5 (12.8)

105

59.7 (10.1)

0.001

Highest education level

ā€ƒHigher educationa

171

33.9%

140

35.1%

31

29.5%

Ā 

ā€ƒTrade/diploma

193

38.3%

158

39.6%

35

18.1%

Ā 

ā€ƒSchool education

140

27.8%

101

25.3%

39

37.1%

0.055

Employment status

ā€ƒFull-time

234

46.4%

191

47.9%

43

41.0%

Ā 

ā€ƒPart-time/casual

111

22.0%

99

24.8%

12

11.4%

Ā 

Otherb

159

31.5%

109

27.3%

50

47.6%

0.001

Occupational categoryc

ā€ƒProfessional

159

31.5%

134

33.6%

25

23.8%

Ā 

ā€ƒWhite collar

102

20.2%

85

21.3%

17

16.2%

Ā 

ā€ƒBlue collar

31

6.2%

27

6.8%

4

3.8%

Ā 

ā€ƒOther

53

10.5%

44

11.0%

9

8.6%

Ā 

ā€ƒNo response

159

31.5

109

27.3%

50

47.6%

0.003

Weekly household income/week

ā€ƒ<$1000

140

27.8%

99

24.8%

41

39.0%

Ā 

ā€ƒ$1000ā€“$1999

146

29.0%

122

30.6%

24

22.9%

Ā 

ā€ƒ$2000ā€“$5000+

150

29.8%

126

31.6%

24

22.9%

Ā 

ā€ƒNo response

68

13.5%

52

13.0%

16

15.2%

0.017

Weight, kg

504

81.9 (18.9)

399

81.1 (19.4)

105

84.9 (16.9)

0.063

BMI, kg/m2

504

29.3 (5.9)

399

29.0 (5.9)

105

30.6 (5.7)

0.010

BMI category

ā€ƒUnderweight/normal weight

122

24.2%

108

27.1%

14

13.3%

Ā 

ā€ƒOverweight

179

35.5%

140

35.1%

39

37.1%

Ā 

ā€ƒObese

203

40.3%

151

37.8%

52

49.5%

0.009

Waist circumference, cmd

469

99.9 (14.3)

372

98.8 (14.5)

97

103.9 (13.0)

0.002

Waist circumference categoryd

ā€ƒHealthy

67

14.3%

56

15.1%

11

11.3%

Ā 

ā€ƒRisky

101

21.5%

88

23.7%

13

13.4%

Ā 

ā€ƒHigh risk

301

64.2%

228

61.3%

73

75.3%

0.033

Self-reported physical activity

ā€ƒNo reported activity

32

6.3%

26

6.5%

6

5.7%

Ā 

ā€ƒInsufficient activity

256

50.8%

207

51.9%

49

46.7%

Ā 

ā€ƒSufficient activity

216

42.9%

166

41.6%

50

47.6%

0.540

Objective physical activity

ā€ƒMinutes of sedentary behaviour

465

535.2 (83.8)

367

530.9 (83.1)

98

551.4 (84.9)

0.031

ā€ƒAverage daily number of steps

465

7247.6 (2424.3)

367

7350.3 (2416.9)

98

6863.0 (2425.6)

0.077

ā€ƒMinutes of moderate to vigorous physical activity

465

24.0 (18.2)

367

24.5 (18.5)

98

22.0 (17.2)

0.218

  1. BMI Body mass index
  2. aHighest education includes higher education (bachelorā€™s degree), graduate diploma/certificate, postgraduate; trade/diploma (certificate, diploma, advanced diploma); school education (high school)
  3. bOther employment includes unemployed, retired, student, home duties, pensioner
  4. cOccupation: professional includes professional, manager; white collar includes community and personal service workers, clerical and administrative, sales; blue collar includes technical and trade worker, operator, driver, manual labourer; other includes taxi driver, telephone interviewer, cashier, grazier, multiple jobs
  5. dThe number of participants for waist circumference does not total 504, owing to missing data for this variable