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. Author manuscript; available in PMC: 2023 Jun 1.
Published in final edited form as: Ann Epidemiol. 2022 Mar 19;70:9–15. doi: 10.1016/j.annepidem.2022.03.006

Table 1.

Baseline descriptive characteristics of participants at baseline by physical function (N=1545)

Independent Variables Overall N (%) Moderate Physical Function N (%) High Physical Function N (%) p-value

Total 1545 975 570
Age (years), mean ± SD 71.98 ± 5.51 72.31 ± 5.78 71.42 ± 4.96
Sex <.0001
 Male 700 (45.31) 385 (39.49) 315 (55.26)
 Female 845 (54.69) 590 (60.51) 255 (44.74)
Marital status (married) 940 (60.84) 565 (57.95) 375 (65.79) 0.002
BMI, mean ± SD 27.73 ± 4.96 27.79 ± 5.17 27.64 ± 4.58 <.0001
Education (years), mean ± SD 5.18 ± 4.11 4.88 ± 3.95 5.67 ± 4.33 <.0001
MMSE (<21) 150 (9.71) 95 (9.74) 55 (9.65) 0.952
SPPB score, mean ± SD 9.01 ± 1.42 8.09 ± 0.80 10.58 ± 0.69 <.0001
Type 2 Diabetes 362 (23.43) 251 (25.74) 111 (19.47) 0.005
Hypertension 614 (39.74) 401 (41.13) 213 (37.37) 0.145
Stroke 47 (3.04) 34 (3.49) 13 (2.28) 0.183
Heart Attack 119 (7.70) 75 (7.69) 44 (7.72) 0.985
Cancer 68 (4.40) 48 (4.92) 20 (3.51) 0.191
Hip Fracture 28 (1.81) 16 (1.64) 12 (2.11) 0.509
Depressive symptoms 246 (15.92) 185 (18.97) 61 (10.70) <.0001

Note. Moderate physical function=SPPB <10; High physical function=SPPB ≥10; SD=standard deviation; BMI=body mass index (kg/m2), MMSE=Mini-Mental State Examination (0–30 range); SPPB=Short Physical Performance Battery (0–12 range); Depressive symptoms measured by Center for Epidemiologic Studies Depression Scale (CES-D >16)