The crude odds ratios (OR) and 95% confidence intervals (95% CI) of potential predictors for multimorbidity separately for the two subgroups of people with no or one disease at baseline.

*the odd ratios presented are for the continuous and ordinal variables the odds ratio for an increase of one unit/level unless stated otherwise and for the dichotomized variables for presented dichotomy.

**p<0.05.

***p<0.10.

ADL, activities of daily living (0–6, higher score indicates worse function).

CPRS, Comprehensive Psychopathological Rating Severity (0–48, higher score indicates more depressive symptoms).

BMI, Body Mass Index.

ESR, erythrocyte sedimentation rate.

MMSE, mini-mental state examination (0–30, higher score indicates better function).

WBC, white blood count.