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Table 5 Pearson correlation coefficients between paired assessments of physical performance and physical activity (PA) at home and in the research center according to different subgroups of participants

From: Assessing physical performance and physical activity in large population-based aging studies: home-based assessments or visits to the research center?

  

Walking speed

Handgrip strength

PA of at least moderate intensity

Total upright posture

  

N

R

N

R

N

R

N

R

Age

75 years

430

0.63***

427

0.85***

225

0.41***

242

0.40***

80 years

288

0.65***

285

0.85***

135

0.43***

153

0.15

85 years

174

0.74***

176

0.86***

75

0.36**

84

0.29**

Sex

Male

385

0.68***

379

0.73***

176

0.31***

195

0.27***

Female

507

0.69***

509

0.68***

259

0.50***

284

0.32***

MMSE score

25–30

786

0.68***

785

0.86***

385

0.40***

428

0.29***

≤24

103

0.73***

100

0.79***

49

0.52***

50

0.35*

ADL limitation

No

780

0.65***

776

0.85***

390

0.40***

430

0.29***

Yes

97

0.81***

99

0.86***

44

0.56***

47

0.37**

Mobility device

No

699

0.62***

702

0.84***

352

0.37***

383

0.31***

Yes

186

0.71***

184

0.87***

80

0.45***

93

0.25*

Neighborhood mobility

Daily

554

0.62***

552

0.85***

269

0.32***

293

0.16*

Less frequent

336

0.74***

335

0.86***

166

0.45***

185

0.44***

CESD score

0–15

745

0.67***

741

0.85***

375

0.42***

410

0.30***

≥16

134

0.74***

136

0.89***

56

0.49***

63

0.25*

Season

Winter

200

0.63***

197

0.84***

103

0.46***

115

0.30**

Spring

192

0.65***

189

0.85***

76

0.36**

90

0.28**

Summer

192

0.78***

191

0.89***

89

0.53***

96

0.41***

Autumn

308

0.68***

311

0.85***

174

0.34***

179

0.24**

  1. MMSE Mini-Mental State Examination, ADL Activities of Daily Living, and CES-D Center for Epidemiologic Studies for Depression
  2. *p < .05, **p < .01, ***p < .001