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Table 1 Characteristics of study population (n = 1471)

From: Prevalence and determinants of chronic kidney disease in community-dwelling elderly by various estimating equations

Age, mean (SD)

years

75.6 (6.56)

n (%)

65-69

351 (23.9)

 

70-79

673 (45.8)

 

≥80

447 (30.4)

Gender, n (%)

male

836 (56.8)

 

female

635 (43.2)

Family status, n (%)

married

960 (65.5)

 

widowed

362 (24.7)

Duration of school education,

≤9 yrs

849 (58.6)

n (%)

10-11 yrs

334 (23.1)

 

≥12 yrs

266 (18.4)

Alcohol consumption, n (%)

daily

448 (31.0)

 

several time per week or month

741 (51.3)

 

<1 time per month

243 (16.8)

 

never

12 (0.8)

Smoking status, n (%)

smoker

136 (9.3)

 

former smoker

601 (41.0)

 

never-smoker

729 (49.7)

Body Mass Index, mean (SD)

kg/m2

27.6 (4.16)

 

≥30 kg/m2, n (%)

356 (24.2)

History of co-morbidity n (%)

hypertension

784 (53.3)

 

myocardial infarct

127 (8.6)

 

heart failure

213 (14.5)

 

chronic kidney disease

43 (2.9)

 

diabetes

197 (13.4)

Creatinine a

mg/dL

0.98 (0.87; 1.14)

Cystatin C a

mg/L

0.88 (0.77; 1.03)

C-reactive protein a

mg/L

1.70 (0.89; 3.70)

  1. amedian (interquartile range, Q1, Q3).