Table 2.
Characteristics of participants stratified by chronic disease status. NHANES 1999–2018
| Variable | Overall | Chronic diseases | p-value | |
|---|---|---|---|---|
| No | Yes | |||
| Age | 70.09 ± 0.10 | 67.20 ± 0.17 | 70.67 ± 0.10 | < 0.0001 |
| PIR | 2.97 ± 0.04 | 3.31 ± 0.06 | 2.90 ± 0.03 | < 0.0001 |
| BMI | 28.95 ± 0.08 | 27.11 ± 0.14 | 29.33 ± 0.09 | < 0.0001 |
| Height | 165.94 ± 0.12 | 166.57 ± 0.25 | 165.81 ± 0.13 | 0.004 |
| Weight | 80.00 ± 0.24 | 75.50 ± 0.49 | 80.93 ± 0.26 | < 0.0001 |
| Waist Circumference | 102.03 ± 0.20 | 96.80 ± 0.42 | 103.13 ± 0.21 | < 0.0001 |
| WBC | 7.12 ± 0.03 | 6.60 ± 0.06 | 7.23 ± 0.03 | < 0.0001 |
| Neutrophil% | 59.47 ± 0.10 | 58.18 ± 0.24 | 59.74 ± 0.11 | < 0.0001 |
| Neutrophils | 4.26 ± 0.02 | 3.89 ± 0.05 | 4.33 ± 0.02 | < 0.0001 |
| CRP | 0.49 ± 0.01 | 0.42 ± 0.03 | 0.51 ± 0.01 | 0.005 |
| DII | 1.48 ± 0.03 | 1.21 ± 0.06 | 1.54 ± 0.03 | < 0.0001 |
| Sex | 0.29 | |||
| Female | 8311(50.33) | 1229(56.49) | 7082(54.92) | |
| Male | 8201(49.67) | 1232(43.51) | 6969(45.08) | |
| Ethnicity | < 0.0001 | |||
| Mexican American | 2440(14.78) | 426(3.72) | 2014(3.79) | |
| Non-Hispanic Black | 3259(19.74) | 348(5.23) | 2911(9.17) | |
| Non-Hispanic White | 8617(52.19) | 1284(82.80) | 7333(78.79) | |
| Other Hispanic | 1243(7.53) | 230(3.75) | 1013(3.49) | |
| Other Race - Including Multi-Racial | 953(5.77) | 173(4.51) | 780(4.76) | |
| Citizenship | 0.22 | |||
| Citizen by birth or naturalization | 15,340(93.01) | 2224(96.68) | 13,116(97.10) | |
| Not a citizen of the US | 1153(6.99) | 234(3.32) | 919(2.90) | |
| Marital status | < 0.0001 | |||
| Divorced or separated | 2405(14.7) | 379(14.41) | 2026(12.42) | |
| Married or living with partner | 9513(58.15) | 1560(69.60) | 7953(61.89) | |
| Single | 756(4.62) | 128(3.64) | 628(3.55) | |
| Widowed | 3686(22.53) | 372(12.35) | 3314(22.14) | |
| Annual family income | < 0.0001 | |||
| <$65,000 | 12,691(80.79) | 1767(65.31) | 10,924(74.04) | |
| >=$65,000 | 3017(19.21) | 564(34.69) | 2453(25.96) | |
| Education | < 0.0001 | |||
| College and above | 6969(42.31) | 1179(60.11) | 5790(50.33) | |
| Middle and high school | 6397(38.83) | 862(33.33) | 5535(39.36) | |
| Primary school and less | 3107(18.86) | 415(6.56) | 2692(10.31) | |
| Smoking status | < 0.0001 | |||
| Never | 7928(48.07) | 1254(53.93) | 6674(47.34) | |
| Ever | 6493(39.37) | 845(33.68) | 5648(41.52) | |
| Current | 2070(12.55) | 356(12.39) | 1714(11.14) | |
| Drinking status | < 0.0001 | |||
| Never | 2767(18.15) | 400(15.05) | 2367(16.11) | |
| Ever | 4205(27.58) | 464(15.86) | 3741(25.06) | |
| Current | 8276(54.28) | 1444(69.09) | 6832(58.82) | |
| DII quartile | < 0.0001 | |||
| Q1 | 4128(25) | 686(32.53) | 3442(26.58) | |
| Q2 | 4130(25.01) | 657(25.74) | 3473(25.67) | |
| Q3 | 4126(24.99) | 601(23.92) | 3525(24.34) | |
| Q4 | 4128(25) | 517(17.82) | 3611(23.41) | |
Continuous variables presented as mean ± SD; categorical variables presented as count (%); PIR, poverty income ratio; BMI, body mass index; WBC, white blood cells; CRP, C-reactive protein; DII, dietary inflammatory index; AHI, annual household income;