Table 1 Sample characteristics of respondents

 Self-reported (minutes / day)

96.1

(79.2)

101.6

(82.3)

89.1

(74.8)

.008

 Accelerometer-assessed (minutes / day)

104.7

(39.9)

105.1

(40.9)

104.1

(38.5)

.679

 Mean differences^a (minutes / day)

−8.5

(75.2)

−3.5

(77.0)

−15.0

(72.6)

.002

 Cognitive function^b (0–74)

53.1

(9.3)

51.6

(9.2)

55.0

(9.1)

< .001

 MMSE^c (0–30)

28.5

(1.2)

28.5

(1.2)

28.6

(1.2)

.363

 Word list learning (0–30)

18.7

(3.9)

18.0

(3.7)

19.6

(3.9)

< .001

 Word list recall (0–10)

5.6

(2.3)

5.2

(2.3)

6.0

(2.3)

< .001

 Word list recognition discriminability (0–10)

8.7

(1.8)

8.4

(1.9)

8.9

(1.6)

< .001

 Verbal fluency (0–24)

20.2

(4.2)

20.0

(4.3)

20.4

(3.9)

.132

 Age (years)

75.3

(6.5)

75.7

(6.5)

74.8

(6.6)

.011

  low (<=9 years)

< .001

  middle (10 years)

  high (> 10 years)

 Body mass index (kg/m²)^d

27.6

(4.0)

27.9

(3.5)

27.2

(4.5)

.002

 Self-rated health^e

3.1

(0.7)

3.1

(0.7)

3.1

(0.7)

.984

 Average temperature (°C)

12.2

(9.3)

12.2

(9.5)

12.2

(9.1)

.749