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Table 4 Annual CMS patient numbers, prevalence, average individual DALYs, and DALYs/1,000 in each altitude group in 2009 and 2010

From: Burden of disease resulting from chronic mountain sickness among young Chinese male immigrants in Tibet

Altitude 2009   2010
N* n (%)** DALY DALY/1,000 N* n (%)** DALY DALY/1,000
3,500-3,999 m 569 12 (2.1) 0.13 (0.11) 3.60 (2.26) 534 17 (3.2) 0.17 (0.11) 4.01 (3.49)
4,000-4,499 m 889 123 (13.8) 0.24 (0.13) 31.80 (16.62) 896 133 (14.8) 0.23 (0.12) 35.71 (19.20)
4,500-4,999 m 687 137 (19.9) 0.26 (0.11) 52.24 (17.88) 603 124 (20.6) 0.26 (0.09) 52.78 (22.94)
5,000-5,400 m 131 49 (37.4) 0.33 (0.08) 112.21 (40.33) 122 41 (33.6) 0.30 (0.11) 110.67 (28.20)
  1. *: total number in each altitude group; **: number of patients (with prevalence in %); †: average individual DALYs of each altitude group (with the standard deviation in brackets); ‡: DALYs per 1,000 of each altitude group (with the standard deviation in brackets).