Accelerometer measured activity pattern (minutes per week) by vision status in the NHANES (2003–2006) adults aged 50 years and older
| Male | Female | |||||
| Unadjusted β (95% CI) | MV-adjusted β (95% CI)* | Marginal mean | Unadjusted β (95% CI) | MV-adjusted β (95% CI)* | Marginal mean | |
| Sedentary time | ||||||
| Normal vision | Ref | Ref | 3756.2 | Ref | Ref | 3502.5 |
| Uncorrected refractive error | −42.0 (−196.9 to 112.9) | −100.7 (−271.5 to 70.0) | 3655.5 | 211.0 (47.9 to 374.2) | 123.8 (−52.4 to 300.0) | 3626.3 |
| Visual impairment | 290.9 (−26.9 to 608.7) | 230.8 (−183.3 to 513.0) | 3921.0 | 318.3 (44.4 to 592.2) | 179.6 (−104.9 to 464.1) | 3682.1 |
| P trend | 0.244 | 0.816 | 0.003 | 0.098 | ||
| Light-intensity physical activity | ||||||
| Normal vision | Ref | Ref | 1815.6 | Ref | Ref | 1914.4 |
| Uncorrected refractive error | −202.7 (−330.4 to −75.0) | −134.9 (−257.6 to −12.2) | 1680.7 | −115.9 (−187.5 to −44.3) | −34.9 (−103.6 to 24.8) | 1875.0 |
| Visual impairment | −196.0 (−311.91 to −80.1) | −57.2 (−182.2 to 67.81) | 1758.4 | −194.8 (−335.3 to −54.2) | −56.6 (−205.9 to 92.7) | 1857.8 |
| P trend | <0.001 | 0.063 | 0.001 | 0.234 | ||
| Lifestyle physical activity | ||||||
| Normal vision | Ref | Ref | 632.2 | Ref | Ref | 507.2 |
| Uncorrected refractive error | −126.6 (−190.4 to −62.8) | −54.4 (−106.1 to −2.7) | 577.8 | −103.5 (−143.2 to −63.8) | −41.0 (−79.8 to −2.3) | 466.1 |
| Visual impairment | −224.1 (−298.9 to −149.2) | −56.5 (−140.0 to 27.0) | 575.6 | −221.0 (−269.2 to −172.8) | −82.8 (−147.8 to −17.8) | 424.4 |
| P trend | <0.001 | 0.051 | <0.001 | 0.009 | ||
| Moderate-to-vigorous physical activity | ||||||
| Normal vision | Ref | Ref | 48.1 | Ref | Ref | 30.3 |
| Uncorrected refractive error | −9.2 (−23.3 to 4.9) | −5.0 (−21.5 to 9.4) | 42.1 | −4.4 (−17.1 to 8.45) | 3.4 (−8.6 to 15.4) | 33.7 |
| Visual impairment | −16.7 (−43.7 to 10.3) | −5.0 (−36.6 to 26.7) | 43.2 | 0.2 (−21.8 to 22.3) | 13.9 (−10.6 to 38.5) | 44.2 |
| P trend | 0.127 | 0.579 | 0.762 | 0.299 | ||
*MV-adjusted models included age (continuous), BMI, race, household income, employment status, smoking status and chronic illness.
BMI, body mass index; MV, multivariate; NHANES, National Health Nutrition and Examinations Survey.