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. 2026 Jul 31;9(5):1254–1262. doi: 10.31662/jmaj.2026-0132

Table 1.

Demographic and Clinical Characteristics of Patients (n = 13,281).

Patient characteristics With dementia (n = 282) Without dementia (n = 12,999)
Basic characteristics
 Male, n (%) 78 (27.7) 4,682 (36.0)
 Female, n (%) 204 (72.3) 8,317 (64.0)
 Age (years), median (IQR) 81.00 (77.00-85.00) 74.00 (68.00-80.00)
 BMI (kg/m2)a, median (IQR) 20.82 (18.04-22.79) 21.71 (19.42-24.09)
Smoking statusa, n (%)
 Current/past 57 (22.0) 3,916 (34.7)
 Never 202 (78.0) 7,381 (65.3)
Charlson Comorbidity Index, n (%)
 0-2 231 (81.9) 11,485 (88.4)
 ≥3 51 (18.1) 1,514 (11.6)
Barthel Indexa, n (%)
 =100 98 (53.8) 7,298 (82.8)
 <100 84 (46.2) 1,520 (17.2)
Underlying conditions, n (%)
 Hypertension 152 (53.9) 4,909 (37.8)
 Dyslipidemia 73 (25.9) 2,751 (21.2)
Calendar date, n (%)
 August 1, 2018-December 31, 2020 109 (38.7) 4,819 (37.1)
 January 1, 2021-December 31, 2024 173 (61.3) 8,180 (62.9)

aBMI, smoking status, and Barthel Index data were missing for 28.4%, 13.0%, and 32.2% of the total number of patients, respectively.

BMI: body mass index; IQR: interquartile range.