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Table 5 Association of baseline and changes in MCS and PCS on long-bout and short-bout SB and MVPA (n = 894)

From: Bidirectional associations of accelerometer-derived physical activity and stationary behavior with self-reported mental and physical health during midlife

 

Long-bout SB (min/day)

Short-bout SB (min/day)

Short-bout MVPA (min/day)

Long-bout MVPA (min/day)

Model 1

Model 2

(+BMI)

Model 1

Model 2

(+BMI)

Model 1

Model 2 (+BMI)

Model 1

Model 2 (+BMI)

std. β (95% CI)

std. β (95% CI)

std. β (95% CI)

std. β (95% CI)

MCS

 Baseline

−13.3 (− 20.1, − 6.6)

−13.6 (− 20.3, − 7.8)

6.6 (2.2, 11.0)

6.3 (1.9, 10.7)

0.8 (0.0, 1.6)

0.9 (0.1, 1.7)

0.7 (−0.6, 2.1)

0.8 (− 0.6, 2.2)

 10-yr change

−5.9 (− 12.5, 0.7)

− 6.3 (− 12.9, 0.3)

2.7 (− 1.6, 7.0)

2.2 (− 2.1, 6.5)

0.5 (− 0.3, 1.3)

0.5 (− 0.2, 1.3)

0.7 (− 0.7, 2.0)

0.8 (− 0.5, 2.1)

PCS

 Baseline

−4.0 (−10.6, 2.6)

− 2.6 (− 9.6, 4.3)

−5.1 (− 9.4, − 0.9)

− 4.0 (− 8.4, 0.5)

1.3 (0.6, 2.1)

1.2 (0.4, 2.0)

1.9 (0.6, 3.2)

1.7 (0.4, 3.1)

 10-yr change

−2.8 (− 9.2, 3.5)

−2.0 (− 8.5, 4.5)

−4.6 (− 8.7, − 0.5)

−3.7 (− 7.9, 0.5)

1.5 (0.7, 2.2)

1.4 (0.6, 2.2)

2.2 (1.0, 3.5)

2.1 (0.8, 3.4)

  1. Statistically significant results are bolded
  2. Model 1 is adjusted for baseline value of the activity variable, follow-up time, average accelerometer wear time, age, race, gender, education, smoking, and center
  3. Model 2 adds adjustment for baseline and 10-year change in BMI
  4. MCS SD = 8.83 points; MCS 10-year change SD = 9.07 points; PCS SD = 7.00 points; PCS 10-year change SD = 7.30 point
  5. Abbreviations: BMI body mass index, cpm counts per minute, LPA light-intensity physical activity, MCS mental component score, MVPA moderate-to-vigorous intensity physical activity, PCS physical component score, pts. points, ref. reference category, SB stationary behavior