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Table 1 Characteristics of respondents to perceived insufficient sleep question: Behavioral Risk Factor Surveillance System Survey, 2008.

From: Relationship between body mass index and perceived insufficient sleep among U.S. adults: an analysis of 2008 BRFSS data

Characteristic n1 %2
Total 384,541 100.0
Sex   
   Men 150,407 50.5
   Women 234,134 49.5
Race/Ethnicity   
   White, non-Hispanic 305,289 68.9
   Black, non-Hispanic 29,745 9.8
   Hispanic 25,255 14.5
   Other/multiracial3 21,051 6.8
Age   
   18-24 12,794 12.2
   25-34 35,636 17.9
   35-44 57,994 19.1
   45-54 79,775 19.3
   55-64 82,897 14.5
   65+ 115,445 17.0
Education Level   
   <High school diploma 36,522 10.9
   High school diploma or GED 115,468 28.7
   Some college 102,219 26.7
   College graduate 129,838 33.8
Smoker   
   Current 65,956 18.7
   Former 114,800 24.6
   Never 202,463 56.6
Physical Activity in Past Month   
   No 104,238 25.0
   Yes 279,924 75.0
Frequent Mental Distress 4   
   No 340,634 89.7
   Yes 39,088 10.4
BMI Category 5   
   Underweight 6,253 1.8
   Normal weight 131,009 35.1
   Overweight 141,082 36.4
   Obese class I 67,084 17.1
   Obese class II 24,609 6.1
   Obese class III 14,504 3.5
Days of Insufficient Sleep   
   0 days 137,781 30.6
   1-13 days 148,476 41.5
   14-29 days 57,931 16.9
   30 days 40,353 11.1
  1. 1 Unweighted n's. Categories may not sum to survey total because of missing responses.
  2. 2 Weighted percentage.
  3. 3 Asian, Native Hawaiian or Other Pacific Islander, American Indian/Alaska Native, or multiracial.
  4. 4 Frequent mental distress: Mental health, including stress, depression, and problems with emotions, was not good for ≥14 days in past 30 days.
  5. 5 BMI categories: underweight (BMI < 18.5), normal weight (18.5 ≤ BMI < 25), overweight (25 ≤ BMI < 30), obese class I (30 ≤ BMI < 35), obese class II (35 ≤ BMI < 40), obese class III (BMI ≥ 40).