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Table 2 Demographic characteristics of Veterans with confirmed/probable carbon monoxide poisoning compared to all Veterans patients, 2010–2017

From: Carbon monoxide poisoning surveillance in the Veterans Health Administration, 2010–2017

Characteristic Confirmed and Probable cases Unique users of VHA care
No. users. (%)
No. cases (%) Rate per 100,000
unique users of care (95% CI)
Overall 1755 (100.0) 3.6 (3.5, 3.8) 48,461,554 (100.0)
Gender:
 Female 199 (11.3) 4.2 (3.7, 4.8) 4,692,679 (9.7)
 Male 1556 (88.7) 3.6 (3.4, 3.7) 43,664,749 (90.1)
 Unknown 0 --a 104,126 (0.2)
Age groups (years):
  < 44 429 (24.4) 5.3 (4.8, 5.8) 8,131,072 (16.8)
 45–64 883 (50.3) 5.4 (5.1, 5.8) 16,219,636 (33.5)
  > 65 443 (25.2) 1.8 (1.7, 2.0) 24,078,923 (49.7)
 Unknown 0 --a 31,923 (0.1)
Race/Ethnicity: b
 AI/AN 8 (0.4) --a 167,952 (0.3)
 Asian 5 (0.3) --a 254,426 (0.5)
 Black 156 (8.9) 3.4 (2.9, 4.0) 4,555,304 (9.4)
 Hispanic/Latino 53 (3.0) 3.0 (2.2, 3.9) 1,746,941 (3.6)
 Multi-racial 8 (0.4) --a 308,867 (0.6)
 NH/OPI 9 (0.5) --a 180,193 (0.4)
 Unknown 66 (3.8) 1.6 (1.2, 2.0) 4,168,179 (8.6)
 White 764 (43.5) 3.9 (3.7, 4.2) 19,427,646 (40.1)
    N = 30,809,508
U.S. Census Region: c
 Midwest 438 (24.9) 5.3 (4.8, 5.8) 8,207,633 (16.9)
 Northeast 206 (11.7) 4.2 (3.6, 4.8) 4,920,495 (10.2)
 South 381 (21.7) 2.4 (2.2, 2.7) 15,575,099 (32.1)
 West 268 (15.3) 3.5 (3.1, 3.9) 7,681,621 (15.9)
 PR/VI 2 (0.1) --a 374,127 (1)
    N = 36,758,975
  1. Note: AI/AN, American Indian/Alaskan Native; NH/OPI, Native Hawaiian/Other Pacific Islander; PR/VI, Puerto Rico/Virgin Islands
  2. aCI not calculated for cell size < 10
  3. bDenominator data for race/ethnicity were available for 2013–2017 only, therefore rates are based on data for these years only
  4. cDenominator data for U.S. Census region were available for 2012–2017 only, therefore rates are based on data for these years only