Table 3.
Descriptive statistics for duration of physical activity in minutes in 2 weeks
| Accelerometer | LAPAQ at T = 1 | LAPAQ at T = 2 | |
|---|---|---|---|
| Number (n) | 89 | 88 | 87 |
| 2–2.99 METs | |||
| Mean (SD) | 1892 (827) | 1630 (1194) | 1299 (1070) |
| Median | 2058 | 1275 | 1050 |
| p25/p75 | 1325/2433 | 720/2520 | 420/2000 |
| 3–5.99 METs | |||
| Mean (SD) | 865 (665) | 630 (740) | 539 (563) |
| Median | 663 | 440 | 440 |
| p25/p75 | 343/1178 | 105/840 | 60/850 |
| ≥6 METs | |||
| Mean (SD) | 32 (119) | 180 (386) | 160 (298) |
| Median | 3 | 0 | 0 |
| p25/p75 | 0/15 | 0/170 | 0/210 |
| All METs (≥2) | |||
| Mean (SD) | 2788 (1265) | 2439 (1678) | 1994 (1367) |
| Median | 2748 | 1945 | 1760 |
| p25/p75 | 1902/3713 | 1230/3540 | 890/2820 |
Notes: On average, scores were higher for accelerometer than for LAPAQ at T = 1 and for LAPAQ at T = 1 than for LAPAQ at T = 2. As a reference, 2 full weeks contain 20,160 minutes.
Abbreviations: n, number; LAPAQ, Longitudinal Ageing Study Amsterdam Physical Activity Questionnaire; T = 1, 2 weeks; T = 2, 4 weeks; MET, metabolic exercise equivalent; SD, standard deviation; p25, 25th percentile; p75, 75th percentile.