Table 4.
Association of prevalence of frequent low daily steps cases (≤1500 steps/day for ≥14 days) and basic characteristics.
| Characteristics | Reference period | Epidemic period | P values for interaction | |||||
| Participants, n | Cases, n (%) | PRa (95% CI)b | Participants, n | Cases, n (%) | PR (95% CI)b | |||
| Total | 2879 | 12 (0.4) | N/Ac | 2655 | 196 (7.4) | N/A | N/A | |
| Age (years) | .001 | |||||||
|
|
40-49 | 1543 | 1 (0.1) | 1.0 (ref)d | 1470 | 84 (5.7) | 1.0 (ref) | N/A |
|
|
50-59 | 957 | 8 (0.8) | 9.9 (1.2-0.0) | 871 | 69 (7.9) | 1.7 (1.2-2.3) | N/A |
|
|
60-70 | 308 | 2 (0.7) | 9.2 (0.8-102.6) | 257 | 32 (12.5) | 2.2 (1.5-3.4) | N/A |
|
|
≥70 | 71 | 1 (1.4) | 21.0 (1.3-331.8) | 57 | 11 (19.3) | 3.0 (1.6-5.7) | N/A |
| Sex | <.001 | |||||||
|
|
Males | 1904 | 7 (0.4) | 1.0 (ref) | 1793 | 75 (4.2) | 1.0 (ref) | N/A |
|
|
Females | 975 | 5 (0.5) | 2.2 (0.6-7.9) | 862 | 121 (14.0) | 3.4 (2.5-4.6) | N/A |
| Body mass index | .250 | |||||||
|
|
<25 | 1557 | 7 (0.5) | 1.0 (ref) | 1415 | 109 (7.7) | 1.0 (ref) | N/A |
|
|
≥25 | 1006 | 3 (0.3) | 0.8 (0.2-3.2) | 269 | 61 (6.2) | 1.2 (0.9-1.7) | N/A |
| Education | .335 | |||||||
|
|
High school or below | 441 | 6 (1.4) | 1.0 (ref) | 389 | 45 (11.6) | 1.0 (ref) | N/A |
|
|
Junior college | 522 | 2 (0.4) | 0.3 (0.1-1.7) | 460 | 31 (6.7) | 0.7 (0.4-1.0) | N/A |
|
|
University or above | 1228 | 2 (0.2) | 0.2 (0.0-1.1) | 1134 | 90 (7.9) | 1.0 (0.7-1.4) | N/A |
| Charlson Comorbidity Index | .345 | |||||||
|
|
0 | 2294 | 9 (0.4) | 1.0 (ref) | 2115 | 150 (7.1) | 1.0 (ref) | N/A |
|
|
≥1 | 585 | 3 (0.5) | 0.9 (0.2-3.8) | 540 | 46 (8.5) | 1.1 (0.7-1.5) | N/A |
aPR: prevalence ratio.
bPrevalence ratios were adjusted for age and sex.
cN/A: not applicable.
dRef: reference.