Table 1 Survey-weighted, sociodemographic and health status characteristics of the older adult participants by category of frailty index in NHANES 1999–2018
Characteristics | Total (n = 15179) | Frailty index | P value | |
|---|---|---|---|---|
≤ 0.21 (n = 10203) | > 0.21 (n = 4976) | |||
Age, years | 69.93(0.10) | 69.09(0.11) | 72.01(0.15) | < 0.001 |
Sex, % | < 0.001 | |||
Female | 7735(55.58) | 5009(53.64) | 2726(60.39) | |
Male | 7444(44.42) | 5194(46.36) | 2250(39.61) | |
Race/ethnicity, % | < 0.001 | |||
Non-Hispanic White | 8038(80.08) | 5477(81.68) | 2561(76.10) | |
Non-Hispanic Black | 2893(8.09) | 1856(7.16) | 1037(10.41) | |
Other race | 4248(11.83) | 2870(11.16) | 1378(13.50) | |
Marital status, % | < 0.001 | |||
Married/living with partner | 6239(36.03) | 3751(31.89) | 2488(46.28) | |
Single/divorced/widowed | 8940(63.97) | 6452(68.11) | 2488(53.72) | |
Education level, % | < 0.001 | |||
Below high school | 4975(20.57) | 2905(16.53) | 2070(30.60) | |
High school | 3642(26.52) | 2441(25.97) | 1201(27.88) | |
Above high school | 6562(52.91) | 4857(57.51) | 1705(41.52) | |
Family PIR, % | < 0.001 | |||
≤ 1.0 | 2561(9.95) | 1380(7.36) | 1181(16.37) | |
1.1–3.0 | 7279(42.35) | 4635(38.44) | 2644(52.02) | |
> 3.0 | 5339(47.70) | 4188(54.20) | 1151(31.60) | |
Smoking status, % | < 0.001 | |||
Never smoker | 7330(48.64) | 5147(50.73) | 2183(43.47) | |
Former smoker | 5974(40.14) | 3852(38.76) | 2122(43.56) | |
Current smoker | 1875(11.22) | 1204(10.52) | 671(12.97) | |
Drinking status, % | < 0.001 | |||
Nondrinker | 4735(27.84) | 2894(24.68) | 1841(35.66) | |
Low-to-moderate drinker | 9414(63.68) | 6501(65.32) | 2913(59.63) | |
Heavy drinker | 1030(8.48) | 808(10.01) | 222(4.71) | |
HEI | 53.68(44.23,63.59) | 54.55(44.83,64.68) | 51.89(42.85,60.79) | < 0.001 |
Frailty index | 0.17(0.00) | 0.12(0.00) | 0.31(0.00) | < 0.001 |
MedHi | 78.40(0.00,201.80) | 91.00(0.00,217.00) | 49.19(0.00,167.47) | < 0.001 |
Category of MedHi* | < 0.001 | |||
Low | 5084(28.32) | 3122(25.53) | 1962(35.24) | |
Medium | 7137(46.64) | 4947(47.40) | 2190(44.74) | |
High | 2958(25.04) | 2134(27.07) | 824(20.02) | |
Category of MedHi† | < 0.001 | |||
G1 | 5084(28.32) | 3122(25.53) | 1962(35.24) | |
G2 | 5048(34.41) | 3434(34.42) | 1614(34.36) | |
G3 | 5047(37.27) | 3647(40.04) | 1400(30.40) | |