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. 2022 Apr 9;22:310. doi: 10.1186/s12877-022-03021-7

Table 1.

Sample Characteristics at Baseline and Follow-up

Baseline 2012 Follow-up 2014
N percent N percent
Total sample 164,597 100% 100,290 100%
Age, Mean (SD) 75.1 (7.4) 76.2 (6.7)
 65–74 87,972 53.4% 47,929 47.8%
 75–84 55,676 33.8% 39,337 39.2%
 85–94 19,313 11.7% 12,308 12.3%
 95+ 1636 1.0% 716 0.7%
Female 95,115 57.8% 58,519 58.4%
Race/ethnicity
 White non-Hispanics 121,334 76.1% 77,694 78.2%
 Black non-Hispanics 13,031 8.2% 7427 7.5%
 Hispanics 15,735 9.9% 8803 8.9%
 Other 9404 5.9% 5408 5.4%
BMI categories
 Underweight (< 18.5 kg/m2) 3274 2.1% 1602 1.8%
 Normal (18.5–24.9 kg/m2) 48,402 31.1% 28,246 30.9%
 Overweight (25–29.9 kg/m2) 59,201 38.0% 35,261 38.6%
 Obesity (≥30 kg/m2) 44,877 28.8% 26,238 28.7%
 Class I obesity (30–34.9 kg/m2) 28,783 18.5% 17,033 18.6%
 Class II obesity (35–39.9 kg/m2) 10,283 6.6% 5978 6.5%
 Class III obesity (≥40 kg/m2) 5811 3.7% 3227 3.5%
Any Difficulty with ADL
 No 100,475 62.4% 62,680 66.7%
 Yes 60,523 37.6% 31,298 33.3%