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Table 1 Baseline characteristics of the participants based on the SONIC study stratified by age groups (70s and 80s) and depressive status

From: Age group differences in association between IADL decline and depressive symptoms in community-dwelling elderly

 70s age groups80s age groups
without depressive symptomswith depressive symptomswithout depressive symptomswith depressive symptoms
n (%)383 (71.1)156 (28.9)320 (61.7)199 (38.3)
 Female206 (53.8)75 (48.1)174 (54.4)108 (54.3)
 IADL decline in 3 years25 (6.5)21 (13.5)42 (13.1)22 (11.1)
 History of stroke16 (4.2)9 (5.8)14 (4.4)13 (6.8)
 History of heart disease51 (13.5)19 (12.2)49 (15.5)38 (19.7)
 Hypertension243 (63.8)100 (64.1)236 (73.8)149 (74.9)
 Dyslipidemia227 (60.5)97 (64.2)191 (59.7)131 (65.8)
 Diabetes34 (9.7)19 (13.7)35 (11.4)15 (7.9)
 Dissatisfaction of household income63 (16.4)42 (26.9)39 (12.2)44 (22.1)
 Education of less than 16 years317 (82.8)133 (85.8)276 (86.5)163 (81.9)
 Solitary living45 (11.7)23 (14.7)69 (21.6)53 (26.6)
Mean (SD)
 MoCA-J score24.0 (3.2)23.7 (2.9)22.6 (3.4)22.3 (3.4)
 Body Mass Index (kg/m2)23.0 (2.8)22.8 (3.1)22.4 (2.8)22.9 (4.4)
  1. Abbreviations: IADL Instrumental activities of daily living, MoCA-J Japanese version of the Montreal Cognitive Assessment
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