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Table 1 Study population

From: Comorbidity of dementia: a cross-sectional study of primary care older patients

  Patients ≥65 without dementia Patients ≥65 with dementia p value
  Total Men Women Total Men Women  
n (%) 68,844 (94.55) 28,176 (40.93) 40,668 (59.07) 3,971 (5.45) 1,185 (29.84) 2,786 (70.16) 0.000
Mean age (SD) 75.53 (7.28) 74.62 (6.85) 76.16 (7.51) 80.22 (7.09) 79.10 (6.94) 80.70 (7.10) 0.000
Number of diseases n (%)    
1 15,052 (21.86) 6,718 (23.84) 8,334 (20.49) 490 (12.34)* 137 (11.56)* 353 (12.67)* 0.000
2 15,934 (23.15) 6,730 (23.89) 9,204 (22.63) 717 (18.06) 218 (18.40) 499 (17.91) 0.000
3 12,795 (18.59) 5,085 (18.05) 7,710 (18.96) 856 (21.56) 260 (21.94) 596 (21.39) 0.000
4 8,500 (12.35) 3,203 (11.37) 5,297 (13.02) 700 (17.63) 222 (18.73) 478 (17.16) 0.000
5 4,604 (6.69) 1,634 (5.80) 2,970 (7.30) 555 (13.98) 151 (12.74) 404 (14.50) 0.000
≥6 3,831 (5.55) 1,320 (4.68) 2,511 (6.17) 653 (16.44) 197 (16.62) 456 (16.38) 0.000
Mean number of diseases (SD) 2.44 (1.75) 2.32 (1.69) 2.52 (1.79) 3.69 (1.95) 3.69 (1.94) 3.68 (1.96) 0.000
  1. SD, standard deviation.
  2. *Patients with dementia only.
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