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Table 1 Distribution of individual baseline characteristics according to activity space

From: Influence of activity space on the association between neighborhood characteristics and dementia risk: results from the 3-City study cohort

Individual characteristics, N (%) No limited activity space (n = 6237) Limited activity space (n = 772) pa
Socio-demographic and socio-economic factors  
Female 3735 (59.9) 591 (76.6) <.0001
Age at inclusion (years)b 73.6 (5.1) 78.4 (6.1) <.0001
Study center <.0001
 Bordeaux 1362 (21.8) 223 (28.9)  
 Dijon 3641 (58.4) 439 (56.9)  
 Montpellier 1234 (19.8) 110 (14.3)  
Familial status (n = 6988) <.0001
 Divorced or single 906 (14.6) 126 (16.3)  
 Married 3737 (60.2) 346 (44.9)  
 Widowed 1567 (25.2) 299 (38.8)  
 Primary study 1407 (22.6) 266 (34.5) <.0001
 Income ≥2287 € 2169 (34.8) 145 (18.8) <.0001
 Blue collars 1072 (17.2) 189 (24.5) <.0001
 Living alone (n = 6992) 2217 (35.6) 372 (48.4) <.0001
 IADL « budget, medication, phone » 51 (0.8) 62 (8.0) <.0001
Factors related to lifestyle
Alcohol consumption (n = 6901)
 Non consumer 1148 (18.7) 254 (33.5) <.0001
 1-36 g/day 4474 (72.9) 474 (62.5)  
  > 36 g/day 513 (8.4) 31 (4.1)  
Smoking status (n = 7013)
 Current smoker 342 (5.5) 29 (3.8) <.0001
 Former smoker 2112 (33.9) 186 (24.2)  
 Non-smoking 3782 (60.7) 555 (72.1)  
Factors related to health
Presence of the APOEε4 1250 (20.0) 140 (18.1) 0.21
Body mass index <.0001
Underweight (< 18.5) 123 (2.0) 58 (7.5)  
Normal (18.5–25) 2869 (46.0) 290 (37.6)  
Overweight [25,26,27,28,29,30] 2459 (39.4) 274 (35.5)  
Obese (> 30) 786 (12.6) 150 (19.4)  
Diabetes 536 (8.6) 112 (14.5) <.0001
History of CVD 508 (8.1) 118 (15.3) <.0001
Hypertensionc (n = 6858) 2499 (40.9) 386 (51.8) <.0001
Hypercholesterolemiad (n = 7000) 3580 (57.5) 406 (52.7) 0.0123
Depressive syndrome (n = 6924) 697 (11.2) 193 (25.0) <.0001
Incidence rate of dementia (/1000 py) 12.2 38.4  
  1. aWilcoxon test for age, chi-square test for other variables
  2. bMEAN (SD)
  3. cHypertension: systolic blood pressure > 140 mmHg or diastolic blood pressure > 90 mmHg or antihypertensive drug intake)
  4. dHypercholesterolemia: fasting total cholesterol> 6.2 mmol/L or lipid-lowering drug intake
  5. CVD, cardiovascular diseases; IADL, Instrumental Activities of Daily Living
  6. Note: People with limited activity space = people who have need to help to go shopping, or if they are unable to move without being accompanied, or if people are confined at home or at their neighborhood