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Table 1 Demographic characteristics of the sample (N = 980) in comparison with the ESRD population of Singapore

From: Validation of the Kidney Disease Quality of Life-Short Form: a cross-sectional study of a dialysis-targeted health measure in Singapore

Variables Sample (N = 980) N (%) ESRD population in Singapore (N = 3403)* N (%)
Age (Years)
<40 84 (8.6) 296 (8.8)
40 - 50 213 (21.7) 705 (20.7)
50 - 60 333 (34.0) 1029 (30.2)
>60 350 (35.8) 1373 (40.3)
   mean age = 56 ± 21   
Gender
Male 550 (56.1) 1713 (50.1)
Female 430 (43.9) 1690 (49.9)
Race
Chinese 668 (68.2) 2525 (74.2)
Malay 166 (16.9) 641 (18.8)
Indian 146 (14.9) 204 (6.6)
Others   30 (1.0)
  1. ESRD, end-stage renal disease
  2. *Data from the Fifth Report of Singapore Renal Registry, 2003/2004, edited by Choong Hui Lin [3].