Table 1.
Demographic and Health Comorbidity Characteristics of the NHATS Study Populations
| Characteristic | NHATS | Dementia Assessmentb | Visual Impairment Assessmentb | ||||
|---|---|---|---|---|---|---|---|
| Total Study Sample (n=10,676)a | Yes (n=752) | No (n=9,094) | P Value | Yes (n=997) | No (n=8,769) | P Value | |
| Age, n (%) | |||||||
| 65–69 years | 2,052 (19.22) | 29 (3.86) | 2,001 (22) | <0.001 | 141 (14.14) | 1,883 (21.47) | <0.001 |
| 70–74 years | 2,075 (19.44) | 59 (7.85) | 1,996 (21.62) | 124 (12.44) | 1,897 (21.63) | ||
| 75–79 years | 2,017 (18.89) | 121 (16.09) | 1,811 (19.91) | 159 (15.95) | 1,763 (20.10) | ||
| 80–84 years | 1,979 (18.54) | 168 (22.34) | 1,659 (18.24) | 175 (17.55) | 1,633 (18.62) | ||
| 85–89 years | 1,392 (13.04) | 180 (23.94) | 995 (10.94) | 195 (19.56) | 967 (11.03) | ||
| 90+ years | 1,161 (10.87) | 195 (25.93) | 662 (7.28) | 203 (20.36) | 626 (7.14) | ||
| Gender, n (%) | |||||||
| Female | 6,297 (58.98) | 466 (61.97) | 5,195 (57.13) | 0.010 | 659 (66.10) | 4,956 (56.52) | <0.001 |
| Race/Ethnicity, n (%) | |||||||
| Non-Hispanic White | 7,306 (68.43) | 419 (57.55) | 6,288 (70.30) | <0.001 | 572 (58.13) | 6,084 (70.62) | <0.001 |
| Non-Hispanic Black | 2,254 (21.11) | 204 (28.02) | 1,883 (21.05) | 264 (26.83) | 1,806 (20.96) | ||
| Hispanic | 613 (5.74) | 75 (10.30) | 516 (5.77) | 114 (11.59) | 474 (5.50) | ||
| Other | 308 (2.88) | 30 (4.12) | 258 (2.88) | 34 (3.46) | 251 (2.91) | ||
| Education, n (%) | |||||||
| <12th grade | 2,399 (22.47) | 311 (43.62) | 2,088 (23.33) | <0.001 | 398 (40.74) | 1,977 (22.95) | <0.001 |
| High school graduate | 2,640 (24.73) | 205 (28.75) | 2,435 (27.20) | 266 (27.23) | 2,352 (27.30) | ||
| Some college | 2,429 (22.75) | 111 (15.57) | 2,318 (25.90) | 198 (20.27) | 2,218 (25.75) | ||
| College graduate and beyond | 2,196 (20.57) | 86 (12.06) | 2,110 (23.57) | 115 (11.77) | 2,068 (24.00) | ||
| Annual household income, n (%) | |||||||
| ≤$25,000 | 3,661 (34.29) | 428 (66.36) | 3,233 (44.53) | <0.001 | 538 (67.50) | 3,078 (43.73) | <0.001 |
| >$25,000 to ≤$45,000 | 1,828 (17.12) | 116 (17.98) | 1,712 (23.58) | 145 (18.19) | 1,667 (23.69) | ||
| >$45,000 to ≤$65,000 | 985 (9.23) | 55 (8.53) | 930 (12.81) | 54 (6.78) | 924 (13.13) | ||
| >$65,000 | 1,432 (13.41) | 46 (7.13) | 1,386 (19.09) | 60 (7.53) | 1,369 (19.45) | ||
| Smoking status, n (%) | |||||||
| Never | 4,887 (45.78) | 423 (56.93) | 4,464 (49.13) | <0.001 | 529 (53.38) | 4,313 (49.24) | 0.042 |
| Former | 4,196 (39.30) | 284 (38.22) | 3,912 (43.06) | 396 (39.96) | 3,771 (43.05) | ||
| Current | 746 (6.99) | 36 (4.85) | 710 (7.81) | 66 (6.66) | 675 (7.71) | ||
| Diabetes, n (%) | 2,543 (23.82) | 215 (28.63) | 2,328 (25.61) | 0.070 | 328 (32.90) | 2,190 (24.99) | <0.001 |
| Hypertension, n (%) | 6,601 (61.83) | 536 (71.47) | 6,065 (66.80) | 0.009 | 723 (72.59) | 5,830 (66.59) | <0.001 |
| Coronary heart disease, n (%) | 1,801 (16.87) | 210 (28.11) | 1,591 (17.53) | <0.001 | 268 (27.02) | 1,508 (17.23) | <0.001 |
| Myocardial infarction, n (%) | 1,481 (13.87) | 148 (19.73) | 1,333 (14.68) | <0.001 | 185 (18.59) | 1,272 (14.53) | 0.001 |
| Stroke, n (%) | 1,098 (10.28) | 211 (28.13) | 887 (9.77) | <0.001 | 212 (21.31) | 868 (9.91) | <0.001 |
| Hearing impairment, n (%) | 1,483 (13.89) | 254 (34.23) | 1,229 (13.53) | <0.001 | 316 (31.89) | 1,143 (13.05) | <0.001 |
| Physical limitation, n (%) | 6,312 (59.12) | 683 (90.82) | 5,629 (61.93) | <0.001 | 871 (87.36) | 5,371 (61.28) | <0.001 |
| Dementia, n (%) | 752 (7.04) | -- | -- | -- | 251 (25.18) | 481 (5.49) | <0.001 |
| Visual impairment, n (%) | 997 (9.34) | 251 (34.29) | 746 (8.26) | <0.001 | -- | -- | -- |
a
Percentages may not add up to 100% due to missing values for total study cohort: race/ethnicity (195, 2%), education (1012, 9%), income (2770, 26%), smoking (847, 8%), diabetes (836, 8%), hypertension (846, 8%), coronary heart disease (855, 8%), myocardial infarction (847, 8%), stroke (847, 8%), hearing impairment (853, 8%), physical limitation (835, 8%), dementia (830, 8%), visual impairment (910, 9%).