Table 1. Characteristics of NHANES participants with CKD in stages G3 –G5 (study sample) and of those individuals among the study sample who were CKD aware, over time and by sex.
| Total | 1999–2002 | 2003–2006 | 2007–2010 | 2011–2014 | 2015–2018 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Men | Women | Men | Women | Men | Women | Men | Women | Men | Women | ||
| N (weighted %) | N = 393 | N = 442 | N = 418 | N = 477 | N = 440 | N = 532 | N = 423 | N = 451 | N = 412 | N = 423 | |
| CKD aware men / women: N (weighted %) within each variable and within each sex | |||||||||||
| Total | 4411 (100.0) | 70 (17.6) | 40 (8.5) | 53 (13.6) | 40 (9.2) | 67 (14.2) | 57 (9.0) | 68 (14.0) | 68 (11.7) | 103 (22.5) | 92 (18.0) |
| CKD Stage | |||||||||||
| G3 | 4007 (92.7) | 43 (13.2) | 21 (6.0) | 37 (11.0) | 29 (7.1) | 51 (11.1) | 30 (5.3) | 49 (11.3) | 47 (9.1) | 85 (19.8) | 68 (15.7) |
| G4 | 338 (6.2) | 16 (41.3) | 8 (32.6) | 14 (41.3) | 9 (30.2) | 15 (65.3) | 23 (42.8) | 12 (47.2) | 17 (42.1) | 17 (73.0) | 23 (47.9) |
| G5 | 66 (1.1) | 11 (97.0) | 11 (72.1) | 2 (93.1) | 2 (81.7) | 1 (49.6) | 4 (90.5) | 7 (83.2) | 4 (69.2) | 1 (33.9) | 1 (25.3) |
| Race/Ethnicity | |||||||||||
| Caucasian | 2762 (80.8) | 32 (15.3) | 18 (6.2) | 33 (12.3) | 25 (8.8) | 40 (13.9) | 25 (7.3) | 32 (12.3) | 30 (9.5) | 47 (20.8) | 41 (16.3) |
| African American | 827 (9.3) | 18 (28.2) | 14 (21.8) | 15 (30.6) | 9 (13.9) | 12 (14.8) | 15 (15.2) | 18 (28.4) | 24 (26.7) | 26 (30.2) | 26 (27.5) |
| Mexican American | 378 (2.8) | 16 (45.2) | 4 (10.3) | 3 (17.2) | 4 (8.7) | 9 (22.0) | 9 (24.2) | 6 (25.0) | 7 (30.1) | 12 (36.0) | 12 (24.7) |
| Other | 444 (7.1) | 4 (25.2) | 4 (15.9) | 2 (7.6) | 2 (9.5) | 6 (12.7) | 8 (17.1) | 12 (11.3) | 7 (10.5) | 18 (22.2) | 13 (18.1) |
| Age Mean (SD) | 73.0 (10.2) | ||||||||||
| [20,49] | 142 (4.6) | 9 (49.4) | 2 (9.5) | 3 (13.2) | 1 (7.8) | 1 (15.4) | 5 (44.2) | 4 (15.1) | 8 (21.8) | 9 (54.1) | 5 (43.9) |
| [50,64] | 646 (18.7) | 11 (18.3) | 12 (17.8) | 11 (20.7) | 11 (17.8) | 15 (14.2) | 10 (6.4) | 16 (11.6) | 17 (14.0) | 20 (27.2) | 16 (20.4) |
| [65,79] | 1932 (44.5) | 35 (16.5) | 15 (6.9) | 23 (14.2) | 16 (9.2) | 34 (16.2) | 28 (9.9) | 36 (17.6) | 26 (10.6) | 47 (19.7) | 38 (14.2) |
| 80+ | 1691 (32.1) | 15 (9.9) | 11 (5.7) | 16 (8.6) | 12 (5.3) | 17 (10.9) | 14 (6.4) | 12 (9.9) | 17 (9.7) | 27 (17.0) | 33 (20.2) |
| Diabetes | |||||||||||
| No | 3142 (74.7) | 39 (13.6) | 26 (6.9) | 29 (8.4) | 22 (7.7) | 33 (10.2) | 28 (6.1) | 34 (11.1) | 33 (8.0) | 56 (19.1) | 45 (13.1) |
| Yes | 1269 (25.3) | 31 (37.9) | 14 (16.0) | 24 (27.8) | 18 (15.4) | 34 (25.4) | 29 (17.5) | 34 (20.5) | 35 (22.3) | 47 (28.3) | 47 (32.3) |
| Hypertension | |||||||||||
| No | 868 (22.0) | 7 (8.8) | 5 (4.0) | 6 (8.6) | 4 (5.4) | 10 (8.7) | 3 (2.5) | 3 (2.6) | 9 (10.7) | 13 (17.0) | 7 (7.9) |
| Yes | 3543 (78.0) | 63 (20.8) | 35 (9.7) | 47 (15.5) | 36 (10.1) | 57 (16.4) | 54 (10.3) | 65 (17.4) | 59 (12.0) | 90 (24.3) | 85 (20.2) |
| BMI Missing | 191 | ||||||||||
| Mean (SD) | 29.4 (6.5) | ||||||||||
| <25 | 1048 (24.4) | 8 (5.4) | 3 (1.2) | 7 (10.8) | 9 (7.6) | 14 (13.6) | 12 (5.9) | 13 (13.8) | 6 (3.9) | 20 (17.9) | 11 (10.8) |
| Overweight (25,30] | 1523 (35.8) | 29 (19.9) | 16 (9.8) | 20 (12.3) | 15 (7.8) | 20 (10.4) | 14 (5.1) | 20 (13.5) | 16 (12.1) | 29 (17.3) | 22 (12.7) |
| Obese >30 | 1649 (39.8) | 24 (23.7) | 15 (10.3) | 19 (14.7) | 15 (12.0) | 27 (16.9) | 31 (14.5) | 34 (15.9) | 43 (16.0) | 51 (28.3) | 55 (23.5) |
| Smoker Missing | 2227 | ||||||||||
| No | 1801 (82.2) | 32 (14.3) | 15 (12.8) | 26 (13.8) | 12 (8.3) | 47 (17.6) | 18 (11.2) | 36 (17.2) | 23 (10.6) | 57 (25.3) | 34 (18.4) |
| Yes | 383 (17.8) | 11 (36.3) | 4 (9.3) | 8 (29.7) | 3 (9.0) | 8 (26.0) | 6 (6.6) | 4 (10.9) | 6 (19.5) | 10 (17.1) | 6 (21.5) |
| Income Missing | 169 | ||||||||||
| >20.000 | 2920 (75.2) | 42 (16.8) | 25 (12.0) | 36 (13.1) | 21 (8.7) | 48 (13.2) | 33 (8.0) | 57 (14.5) | 43 (11.7) | 68 (20.4) | 56 (15.5) |
| <20.000 | 1322 (24.8) | 23 (21.9) | 11 (5.5) | 17 (17.8) | 16 (10.1) | 19 (20.4) | 23 (11.8) | 11 (12.3) | 24 (11.6) | 28 (34.3) | 35 (27.0) |
| Education | |||||||||||
| High School or higher | 2908 (74.6) | 35 (18.2) | 23 (8.2) | 36 (12.3) | 25 (10.1) | 32 (10.5) | 34 (8.4) | 46 (13.1) | 48 (11.8) | 77 (23.1) | 65 (16.3) |
| less than High School | 1503 (25.4) | 35 (16.5) | 17 (9.0) | 17 (17.4) | 15 (7.4) | 35 (25.2) | 23 (10.4) | 22 (17.1) | 20 (11.5) | 26 (19.9) | 27 (27.4) |
| Health Insurance | |||||||||||
| No | 201 (4.3) | 4 (32.3) | NA (0.0) | 2 (17.3) | 3 (15.1) | 2 (6.7) | 4 (15.9) | 7 (28.1) | 5 (16.0) | 6 (42.2) | 4 (17.4) |
| Yes | 4210 (95.7) | 66 (17.0) | 40 (9.1) | 51 (13.5) | 37 (9.0) | 65 (14.5) | 53 (8.6) | 61 (13.4) | 63 (11.5) | 97 (21.1) | 88 (18.0) |
| Healthcare Visits Missing | 14 | ||||||||||
| 0 | 140 (2.9) | 1 (8.2) | 1 (4.1) | 2 (7.7) | NA (0.0) | NA (0.0) | NA (0.0) | 2 (10.1) | NA (0.0) | 2 (31.9) | 1 (5.9) |
| 1–3 | 1420 (33.5) | 11 (7.3) | 10 (7.0) | 11 (6.8) | 9 (8.1) | 13 (9.4) | 9 (6.7) | 13 (9.0) | 11 (5.2) | 28 (20.3) | 21 (9.6) |
| 4–12 | 1713 (39.2) | 31 (21.9) | 15 (10.9) | 14 (11.6) | 16 (7.4) | 29 (15.5) | 17 (5.6) | 22 (12.0) | 35 (14.8) | 42 (20.1) | 44 (24.9) |
| >12 | 1124 (24.4) | 27 (28.9) | 14 (7.8) | 26 (24.0) | 15 (15.7) | 25 (19.9) | 31 (17.8) | 31 (24.7) | 22 (15.3) | 31 (28.9) | 24 (19.8) |
| Overall CKD Awareness (weighted %) | 11.2% | 10.7% | 10.8% | 12.8% | 19.8% | ||||||
Entire Column 1 (left) and row 3: NHANES participants with CKD in stages G3 –G5. Columns 2–11 (right), Rows 5–47: CKD aware individuals among the study sample participants (N’s and survey-weighted percentages), by 4-year study period and sex. Row 48: Overall CKD awareness over time.