Table 6.
Comparison of measures at surveys 1 (1996), 5 (2009), 6 (2012) and 7 (2015) from women in the 1973-1978 cohort of the Australian Longitudinal Study on Women’s Health who responded to surveys 6 and 7, according to their mode of survey completion.
| Characteristics | Online/online (n=3189) | Online/paper (n=963) | Paper/online (n=1007) | Paper/paper (n=1408) | P value | |
| Age at survey 1, mean | 20.75 | 20.79 | 20.81 | 20.87 | .08 | |
| Body mass index |
|
|
|
|
|
|
|
|
Survey 1 | 22.81 | 22.24 | 22.73 | 22.77 | .003 |
|
|
Change from survey 5 to survey 6 | 0.36 | 0.44 | 0.42 | 0.50 | .37 |
|
|
Change from survey 6 to survey 7 | 0.60 | 0.60 | 0.61 | 0.55 | .92 |
| SF-36a subscale for physical function |
|
|
|
|
|
|
|
|
Survey 1 | 92.61 | 92.45 | 91.67 | 91.40 | <.001 |
|
|
Change from survey 5 to survey 6 | 0.14 | 0.25 | –0.22 | 0.57 | .73 |
|
|
Change from survey 6 to survey 7 | –0.45 | –0.14 | 0.58 | –0.28 | .35 |
| SF-36 subscale for mental health |
|
|
|
|
|
|
|
|
Survey 1 | 70.65 | 69.93 | 68.13 | 68.22 | .008 |
|
|
Change from survey 5 to survey 6 | 0.03 | 0.14 | 0.25 | 0.53 | .82 |
|
|
Change from survey 6 to survey 7 | –1.07 | –1.06 | –1.70 | –1.68 | .50 |
aSF-36: 36-Item Short Form Health Survey.