Background
Methods
The 45 and Up Study
Participants
Physical activity and sitting time
Self-rated health and quality of life
Covariates and potential confounding variables
Statistical methods
Results
Total sample | Very highly active#
| Sitting‡
| |||||
---|---|---|---|---|---|---|---|
≥540mins/week | 0 to <4 hrs/day | ||||||
N | % | N | % | N | % | ||
Self-rated health | |||||||
Excellent | 31,738 | 16.5 | 17,763 | 56.0 | 9,214 | 29.0 | |
Very Good | 73,852 | 38.4 | 35,158 | 47.6 | 19,494 | 26.4 | |
Good | 62,417 | 32.5 | 24,127 | 38.7 | 15,373 | 24.6 | |
Fair | 20,629 | 10.7 | 6,201 | 30.1 | 4,452 | 21.6 | |
Poor | 3,672 | 1.9 | 723 | 19.7 | 698 | 19.0 | |
Self-rated quality of life | |||||||
Excellent | 48,787 | 25.7 | 25,679 | 52.6 | 13,531 | 27.7 | |
Very Good | 73,141 | 38.5 | 32,775 | 44.8 | 18,597 | 25.4 | |
Good | 50,328 | 26.5 | 19,260 | 38.3 | 12,498 | 24.8 | |
Fair | 14,929 | 7.9 | 4,573 | 30.6 | 3,358 | 22.5 | |
Poor | 2,792 | 1.5 | 677 | 24.2 | 563 | 20.2 |
Excellent health | Excellent quality of life | ||||
---|---|---|---|---|---|
N | % | OR* (95% CI) | OR* (95% CI) | ||
Sex | |||||
Male† | 95,242 | 48.4 | 1.00 | 1.00 | |
Female | 100,293 | 51.6 | 1.38 (1.34—1.41) | 1.31 (1.28—1.33) | |
Sitting time per day (hours) | |||||
≥8† | 50,402 | 25.9 | 1.00 | 1.00 | |
6 to <8 | 38,806 | 19.9 | 0.99 (0.95—1.02) | 1.03 (0.99—1.06) | |
4 to <6 | 55,435 | 28.5 | 1.01 (0.97—1.04) | 1.05 (1.02—1.08) | |
0 to <4 | 49,902 | 25.7 | 1.23 (1.19—1.27) | 1.18 (1.15—1.22) | |
Physical activity per week (minutes) | |||||
0† | 7,624 | 3.9 | 1.00 | 1.00 | |
1 to 149 | 30,086 | 15.5 | 1.60 (1.44—1.77) | 1.75 (1.61—1.90) | |
150 to 299 | 30,524 | 15.7 | 2.52 (2.27—2.79) | 2.65 (2.44—2.87) | |
300 to 539 | 41,413 | 21.3 | 3.45 (3.12—3.82) | 3.34 (3.09—3.61) | |
≥540 | 84,898 | 43.6 | 4.48 (4.06—4.95) | 4.05 (3.75—4.38) | |
Age group (years) | |||||
45 to 54† | 62,038 | 31.933.8 | 1.00 | 1.00 | |
55 to 64 | 65,796 | 33.8 | 0.84 (0.82—0.86) | 0.94 (0.92—0.97) | |
65 to 74 | 40,444 | 20.8 | 0.58 (0.56—0.60) | 0.69 (0.67—0.71) | |
75 to 84 | 22,037 | 11.3 | 0.32 (0.30—0.33) | 0.37 (0.35—0.39) | |
85 and older | 4,230 | 2.2 | 0.20 (0.17—0.23) | 0.21 (0.19—0.23) | |
Household income | |||||
less than $10 K† | 9,699 | 5.0 | 1.00 | 1.00 | |
$10 to <30 K | 45,958 | 23.6 | 1.18 (1.09—1.28) | 1.33 (1.25—1.43) | |
$30 to <50 K#
| 62,408 | 32.1 | 2.09 (1.94—2.26) | 2.38 (2.23—2.53) | |
$50 to <70 K | 22,037 | 11.7 | 2.59 (2.38—2.80) | 2.93 (2.74—3.14) | |
$70 K or more | 53,803 | 27.7 | 3.83 (3.55—4.14) | 4.37 (4.09—4.66) | |
Residential remoteness | |||||
Major city† | 88,446 | 45.5 | 1.00 | 1.00 | |
Inner regional area | 68,785 | 35.4 | 0.92 (0.89—0.94) | 1.02 (1.00—1.04) | |
Outer regional area | 33,743 | 17.3 | 0.86 (0.83—0.89) | 0.98 (0.95—1.01) | |
Remote area | 3,259 | 1.7 | 0.72 (0.65—0.80) | 0.88 (0.81—0.96) | |
Very remote area | 312 | 0.2 | 0.67 (0.48—0.94) | 0.96 (0.74—1.25) | |
Residential economic advantage | |||||
Least advantaged† | 48,713 | 25.0 | 1.00 | 1.00 | |
Mid—low advantage | 45,756 | 23.5 | 1.11 (1.07—1.15) | 1.07 (1.04—1.10) | |
Mid—high advantage | 48,894 | 25.1 | 1.25 (1.20—1.29) | 1.15 (1.12—1.18) | |
Most advantaged | 51,182 | 26.3 | 1.68 (1.62—1.74) | 1.47 (1.43—1.51) | |
Educational qualification | |||||
No school certificate† | 18,646 | 9.6 | 1.00 | 1.00 | |
School certificate | 40,685 | 20.9 | 1.59 (1.49—1.68) | 1.57 (1.50—1.65) | |
High school certificate | 19,588 | 10.1 | 2.01 (1.88—2.14) | 1.92 (1.82—2.03) | |
Trade/apprenticeship | 21,426 | 11.0 | 1.44 (1.34—1.53) | 1.50 (1.42—1.58) | |
Certificate/diploma | 43,251 | 22.2 | 2.20 (2.08—2.33) | 2.22 (2.12—2.33) | |
University degree | 50,949 | 26.2 | 3.34 (3.16—3.53) | 3.29 (3.14—3.44) | |
Smoking status | |||||
Never regular smoker† | 110,119 | 56.6 | 1.00 | 1.00 | |
Ever regular smoker | 84,426 | 43.4 | 0.67 (0.65—0.68) | 0.72 (0.71—0.74) | |
Weight status | |||||
Underweight | 2,404 | 1.2 | 0.65 (0.58—0.72) | 0.59 (0.53—0.65) | |
Normal weight† | 71,499 | 36.8 | 1.00 | 1.00 | |
Overweight | 77,684 | 39.9 | 0.59 (0.57—0.60) | 0.76 (0.74—0.78) | |
Obese | 42,958 | 22.1 | 0.24 (0.23—0.25) | 0.46 (0.45—0.48) | |
Chronic diseases | |||||
None† | 71,221 | 36.6 | 1.00 | 1.00 | |
One | 67,886 | 34.9 | 0.59 (0.57—0.60) | 0.75 (0.73—0.76) | |
Two or more | 55,438 | 28.5 | 0.23 (0.22—0.24) | 0.43 (0.42—0.44) | |
Functional limitation | |||||
No limitation† | 66,747 | 34.3 | 1.00 | 1.00 | |
Minor limitation | 34,012 | 17.5 | 0.40 (0.38—0.41) | 0.64 (0.62—0.65) | |
Moderate limitation | 36,819 | 18.9 | 0.20 (0.19—0.20) | 0.39 (0.38—0.40) | |
Severe limitation | 56,967 | 29.3 | 0.05 (0.05—0.06) | 0.12 (0.11—0.12) | |
Marital status | |||||
Not married, divorced, separated † | 45,492 | 23.4 | 1.00 | 1.00 | |
Married, de facto | 149,053 | 76.6 | 1.33 (1.29—1.37) | 1.82 (1.77—1.86) |
Sitting time
Excellent health | |||
---|---|---|---|
Adjusted ORa(95% CI) | Adjusted ORb(95% CI) | Adjusted ORc(95% CI) | |
Sitting time (hrs/day) | |||
≥8† | 1.00 | 1.00 | 1.00 |
6 to <8 | 0.90 (0.87—0.94) | 1.05 (1.01—1.09) | 1.04 (0.99—1.08) |
4 to <6 | 0.90 (0.87—0.93) | 1.10 (1.06—1.14) | 1.05 (1.01—1.09) |
0 to <4 | 1.09 (1.05—1.13) | 1.26 (1.21—1.30) | 1.13 (1.09—1.18) |
Physical activity (mins/week) | |||
0† | 1.00 | 1.00 | 1.00 |
1 to 149 | 1.61 (1.44—1.78) | 1.28 (1.15—1.42) | 1.10 (0.98—1.23) |
150 to 299 | 2.53 (2.28—2.81) | 1.73 (1.56—1.92) | 1.37 (1.23—1.53) |
300 to 539 | 3.47 (3.14—3.84) | 2.28 (2.06—2.53) | 1.69 (1.51—1.88) |
≥540 | 4.51 (4.08—4.98) | 3.20 (2.89—3.54) | 2.22 (2.00—2.47) |
Excellent quality of life
| |||
Adjusted OR
a
(95% CI)
|
Adjusted OR
b
(95% CI)
|
Adjusted OR
c
(95% CI)
| |
Sitting time (hrs/day) | |||
≥8† | 1.00 | 1.00 | 1.00 |
6 to <8 | 0.95 (0.92—0.98) | 1.09 (1.05—1.12) | 1.08 (1.04—1.11) |
4 to <6 | 0.95 (0.93—0.98) | 1.14 (1.11—1.18) | 1.10 (1.07—1.14) |
0 to <4 | 1.07 (1.04—1.10) | 1.23 (1.19—1.27) | 1.13 (1.10—1.17) |
Physical activity (mins/week) | |||
0† | 1.00 | 1.00 | 1.00 |
1 to 149 | 1.75 (1.61—1.90) | 1.44 (1.33—1.57) | 1.29 (1.19—1.41) |
150 to 299 | 2.65 (2.45—2.87) | 1.92 (1.77—2.09) | 1.62 (1.49—1.76) |
300 to 539 | 3.35 (3.09—3.62) | 2.35 (2.17—2.55) | 1.86 (1.71—2.02) |
≥540 | 4.05 (3.75—4.38) | 3.06 (2.82—3.31) | 2.30 (2.12—2.49) |