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Table 1 Study sample characteristics by age, mean (SD) or percentages (number of total number measured (n/N). The Tromsø Study 2001-2002

From: The association between anemia and falls in community-living women and men aged 65 years and older from the fifth Tromsø Study 2001-02: a replication study

 

All

p-value1

Variable

 

Age-group

Age-group

 

65-74 years

≥ 75 years

(N = 2441)

(N = 1637)

(N = 804)

Mean age, years

72.0 (4.8)

69.2 (2.9)

77.6 (2.2)

Fallsa, n (%)

33 (803/2441)

32 (518/1637)

36 (285/804)

0.060

Anemiab, n (%)

8 (188/2441)

6 (95/1687)

12 (93/804)

< 0.0001

Hemoglobin, g/dl

13.9 (1.1)

13.9 (1.1)

13.7 (1.2)

< 0.0001

Multimorbidityc, n (%)

4 (74/1825)

3 (36/1288)

7 (38/537)

< 0.0001

Disabilityd, n (%)

26 (339/1284)

20 (124/635)

33 (215/649)

< 0.0001

Frailtye, n (%)

39 (232/592)

25 (16/65)

41 (216/527)

0.011

Hypertensionf (%)

65 (1592/2440)

62 (1006/1637)

73 (586/803)

< 0.0001

Use of antihypertensives, n (%)

31 (741/2363)

29 (467/1588)

35 (274/775)

0.003

Use of ≥ 5 drugsg, n (%)

16 (293/1841)

15 (180/1196)

18 (113/645)

0.167

Low physical activity, n (%)

8 (180/2147)

7 (98/1471)

12 (82/676)

< 0.0001

Body mass index, kg/m2

26.7 (4.1)

26.7 (4.1)

26.6 (4.2)

0.567

  1. 1P-value for age difference (two-sided t-test for comparisons of means for continuous variables and Chi-square test for categorical variables)
  2. aSelf-reported fall last year
  3. bWHO criteria (< 12 g/dl in women, < 13 g/dl in men)
  4. cSelf-reported ≥ 3 of the following diseases: asthma/emphysema/chronic bronchitis, cancer (ever), diabetes, stroke, coronary heart disease, peptic ulcer
  5. dSelf-reported functional status
  6. eModified Fried’s criteria
  7. fBlood pressure > 140/90 mmHg
  8. gSelf-reported drugs used on a regular basis