Table 1.

Summary statistics of selected baseline variables by CKD status: total study population, 2005–2014

MeasureAll (n=27,365)No CKD (n=22,137)CKD (n=5228)
Age, yr47 (0.27)45 (0.24)60 (0.39)
 20–34 (%)283112
 35–49 (%)293117
 50–64 (%)262623
 65–74 (%)10819
 >75 (%)7429
Male (%)484942
Race/ethnicity (%)
 Hispanic141411
 Non-Hispanic white686870
 Non-Hispanic black111113
 Other non-Hispanic race776
Body mass index, kg/m228.8 (0.08)28.6 (0.09)29.9 (0.14)
 <18.5 kg/m2, underweight (%)322
 18.5 to <25 kg/m2, normal weight (%)293025
 25 to <30 kg/m2, overweight (%)333430
 ≥30 kg/m2, obese (%)353443
Diabetes (%)11728
Hypertension (%)342771
Smoking (%)333333
Cancer (%)10817
Cardiovascular disease (%)8624
Chronic respiratory disease (%)181821
Full-time job383837
Worsening confusion or memory loss in the past 12 moa151221
  • Data are presented as weighted proportions (%) or weighted means (and SD).

  • a Only among people who were ≥60 years from 2011 to 2014.