Skip to main content

Table 1 Modes & settings and PA levels: Longitudinal changes within cohorts and differences between cohorts

From: Changes in sport and physical activity participation for adolescent females: a longitudinal study

   

Cohort, calendar year and school year level

  
  

Year 7 (n = 328a)

Year 11 (n = 112a)

  
 

Measure/dichotomy

 

2007b

2008

2009

2010

Statistically significant trendc

2007b

2008

2009

2010

Statistically significant trendc

Statistically significant difference between cohorts,

Characteristic

 

Variable

Yr 6

Yr 7

Yr 8

Yr 9

p-value

Type

Sign

Yr 10

Yr 11

Yr 12

Yr 13

p-value

Type

Sign

p-value

Signd

MODES & SETTINGS OF PA

                  

 Physical Education classes

Yes/No

% Yes

82

97

99

96

< .001

Linear Quadratic

+

89

46

34

N/Ae

< .001

Linear

-

< .001

-

< .001

+ -

< .001

Quadratic

- +

 Competitive team sports - at school

Yes/No

% Yes

80

65

64

61

< .001

Linear

-

69

60

52

N/Ae

< .001

Linear

-

.002

-

 Competitive team sports - outside school

Yes/No

% Yes

66

63

63

58

   

67

64

53

47

< .001

Linear

-

  

 Competitive individual sports - at school

Yes/No

% Yes

49

45

35

35

< .001

Linear

-

45

32

32

N/Ae

.001

Linear Quadratic

-

  

.034

- +

 Competitive individual sports - outside school

Yes/No

% Yes

41

37

38

33

   

38

24

20

18

< .001

Linear

-

<.001

-

 Organised but non-competitive physical activity e.g. aerobics, weights class, circuit training

Yes/No

% Yes

36

32

43

49

< .001

Linear

+

51

47

51

55

   

.003

+

 Non-organised physical activity e.g. walking, jogging, rollerblading (alone or with friends)

Yes/No

% Yes

70

81

87

85

< .001

Linear Quadratic

+

81

92

92

92

.045

Quadratic

+ -

<.001

+

.002

+ -

 Sports club member

Yes/No

% Yes

 

70

69

67

    

66

54

50

.001

Linear

-

.012

-

PA LEVELS

                  

 Duration of LTMVPA (min) on previous day (min)

Scale (0-)

Mean

 

68.6

73.0

74.0

    

82.2

72.1

62.5

     

 Total MET-min of LTMVPA on previous day

Scale (0-)

Mean

 

489.2

523.6

560.4

    

601.0

533.6

498.4

     
  1. aFor PDPAR-based measures (LTMVPA and MET-min) sample sizes in the three waves were: Year 7 n = 214, 215 and 221; Year 11 n = 84, 89, 71
  2. bAt baseline (2008), participants were asked about their modes and settings of PA 1 year earlier (2007)
  3. c p-values for each statistically significant longitudinal trend. Signs indicate direction of linear trend and pattern of quadratic curvature superimposed on linear trend
  4. d p-values for each statistically significant difference. Signs indicate the direction of difference between Year 7 and Year 11 cohorts
  5. eSchool-based activities were not applicable in Year 13 (post-school)
Back to article page

BMC Public Health

ISSN: 1471-2458

Contact us