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Table 2 Description of the study population, overall and stratified by age

From: Ability of ecological deprivation indices to measure social inequalities in a French cohort

 

All

<65 years old

≥65 years old

Overall p-value (crude)†

N

63,888

36,975

26,913

 

Age, mean ± SD

64.4 ± 6.4

59.8 ± 2.7

70.8 ± 4.1

 

Ever smokers

46.9

51.0

41.1

 

Overweight status

30.0

28.2

32.6

<0.0001

Individual-educational level

  < High school

11.7

9.3

14.9

<0.0001

 High school to 2-level university

51.2

48.4

55.1

 

 3−/4-level university

18.8

23.3

12.6

 

 5-level university

18.3

18.9

17.5

 

Degree of urbanicity

 Paris and suburbs

10.2

9.6

11.0

<0.0001

 Urban

33.0

30.6

36.3

 

 Quasi-urban

33.7

34.8

32.1

 

 Quasi-rural and Rural

23.1

25.1

20.5

 

Area-level SEP, mean ± SD

 FDep

−0.3 ± 1.0

−0.3 ± 1.0

−0.3 ± 1.0

0.30

  Min-Max

−4.1 – 3.3

−4.1 – 3.3

−4.1 – 3.2

 

 FEDI

−0.3 ± 3.4

−0.4 ± 3.5

−0.1 ± 3.4

<0.0001

  Min-Max

−8.7 – 28.5

−8.7 – 28.5

−8.2 – 25.6

 

 Townsend

1.2 ± 3.1

1.0 ± 3.1

1.4 ± 3.1

<0.0001

  Min-Max

−8.9 – 14.3

−8.9 – 14.3

−7.1 – 14.0

 
  1. Data are presented as %, unless otherwise stated
  2. †: t-tests were used for continuous variables and Chi-squared tests were used for categorical variables
  3. Overweight corresponds to a Body Mass Index ≥25 kg/m2
  4. FDep French Deprivation index, FEDI French European Deprivation Index
  5. The Deprivation indices are presented in continuous
  6. Degree of urbanicity is a geographic measure of population density, defined at commune-level by INSEE (French National Institute of Statistics and Economic Studies): rural and quasi-rural (<10,000 inhabitants), quasi-urban (from 10,000 to 99,999), urban (from 100,000 to 1,999,999) and Paris-and-suburbs (Paris Urban Unit)