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Table 1 BRFSS Respondent Characteristics. Overall characteristics of complete cases used in analyses (i.e., Study Subjects) and those excluded due to missing data (i.e., Incomplete Cases) corresponding to BRFSS surveys from years 2007-2012. For each category, N (%) for raw data are shown

From: Gender-specific determinants of asthma among U.S. adults

  Missing Responses Study Subjects Incomplete Cases
(N = 1,003,894) (N = 258,370)
Asthma 4,885 (0.39)   
 No Asthma 910,446 (90.69) 228,298 (90.06)
 Asthma 93,448 (9.31) 25,187 (9.94)
Gender 0 (0.00)   
 Male 408,785 (40.72) 74,797 (28.95)
 Female 595,109 (59.28) 183,573 (71.05)
Race/Ethnicity 49,411 (3.91)   
 White 791,219 (78.81) 161,124 (77.11)
 Black 94,962 (9.46) 20,136 (9.64)
 American Indian/Alaskan Native 8,995 (0.90) 1,910 (0.91)
 Asian/Pacific Islander 31,782 (3.17) 6,226 (2.98)
 Hispanic 76,936 (7.66) 19,563 (9.36)
Education level 5,079 (0.40)   
 Less than high school 22,554 (2.25) 12,388 (4.89)
 High school 300,157 (29.90) 90,843 (35.87)
 Some college or more 681,183 (67.85) 150,060 (59.24)
Yearly Household income (USD) 165,884 (13.14)   
  < $25,000 253,845 (25.29) 30,061 (32.50)
 $25,000-$75,000 424,416 (42.28) 38,185 (41.29)
  ≥ $75,000 325,633 (32.44) 24,240 (26.21)
Body Mass Index (BMI) 63,813 (5.06)   
 Not overweight or obese 364,981 (36.36) 79,819 (41.03)
 Overweight 370,007 (36.86) 68,578 (35.25)
 Grade 1 obese 170,604 (16.99) 29,649 (15.24)
 Grade 2 obese 61,508 (6.13) 10,193 (5.24)
 Grade 3 obese 36,794 (3.67) 6,318 (3.25)
Smoking status 10,969 (0.87)   
 Never smoked 533,717 (53.16) 139,077 (56.22)
 Former smoker 310,507 (30.93) 73,486 (29.70)
 Current smoker 159,670 (15.91) 34,838 (14.08)
Age 13,785 (1.09)   
 22-34 118,250 (11.78) 28,139 (11.50)
 35-44 159,672 (15.91) 29,622 (12.11)
 45-54 211,528 (21.07) 41,017 (16.77)
 55-64 225,722 (22.48) 48,606 (19.87)
 65+ 288,722 (28.76) 97,201 (39.74)