Skip to main content

Table 1 Demographic and Medical Characteristics of Study Subjects

From: Exploring the associations between systemic inflammation, obesity and healthy days: a health related quality of life (HRQOL) analysis of NHANES 2005–2008

Variable Mean (SD) or frequency (%) % missing
Sample size = 6325
Age (yrs.) 51.30(17.85) 0
Male 48.96% 0
Race   
-Mexican American (1) 17.28% 0
-Other Hispanic (2) 11.38% 0
-Non-Hispanic White (3) 46.75% 0
-Non-Hispanic Black (4) 20.63% 0
-Other Race (Multiracial) (5) 4.03% 0
HSQ470 (days) 4.49(8.71) 11.74
HSQ480 (days) 4.09(8.28) 11.71
BMI (kg/m2) 29.34(6.77) 5.66
-normal weight(18.5–24.99) 27.1%  
-overweight(25–29.99) 34.8%  
-obese(≥ 30) 38.0%  
CRP(mg/dl) 0.46(0.89) 9.92
-non-elevated (< 0.22) 51.3%  
-elevated (≥ 0.22- < 1.0) 37.4%  
-clinically raised (≥ 1.0) 11.3%  
SMQ040 (=1) [smoking] 21.97% 52.29
MCQ010 (=1) [asthma] 14.01% 0.09
MCQ220 (=1) [cancer] 10.12% 0.17
MCQ160A (=1) [arthritis] 32.21% 0.16
Any heart disease (=1) 9.38% 0.01
Anti-inflammatory drug use 13.72% 38.02
  1. Data is presented as mean(SD) for continuous variables and as frequency(%) for categorical variables. The percent of data missing for each variable is indicated. Inflammation-related variables are coded (as per NHANES 2005–2008) as follows: SMQ040 (current smoking status), MCQ010 (medical diagnosis of asthma), MCQ220 (medical diagnosis of cancer), MCQ160A (medical diagnosis of arthritis), Any heart disease (medical diagnosis of one or more of heart attack, congestive heart failure or coronary heart disease)