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Table 1 Descriptive statistics

From: Bias in estimates of alcohol use among older people: selection effects due to design, health, and cohort replacement

 

n

Weighted n

Weighted %

Period (response rate)

  

 1992 (95.4 %)

532

587.0

32.3

 2002 (84.4 %)

610

610.0

33.5

 2011 (86.2 %)

880

621.7

34.2

Sex

   

 Women

1173

1104

60.7

 Men

849

714

39.3

Age

   

 Range

77–101

77–101

 

 Mean

84.6

83.0

 

Birth year

  

 Range

1894–1934

1894–1934

 

 Mean

1918

1918

 

Living in an institution

  

 Yes

312

226.8

12.5

 No

1710

1591.9

87.5

ADL limitation

   

 Yes

619

495.5

27.3

 No

1403

1323.2

72.8

Mobility problem

   

 Yes

1130

965.5

53.1

 No

892

853.2

46.9

Proxy interview

   

 Yes

384

310.8

17.1

 No

1638

1508.0

82.9

Telephone interview

  

 Yes

434

351.2

19.3

 No

1588

1467.5

80.7

Alcohol consumption

  

 Abstainers

729

655.4

36.0

 Seldom

485

441.4

24.3

 Monthly

380

338.9

18.6

 Weekly

428

383.1

21.1

Total

2022

1818.7

100