Table 1.
SEABIRD participant characteristics
| Characteristic | Enrolled Group (n=859)* | Enrollment Goal (n=859)† | Standardized Difference‡ |
|---|---|---|---|
| Age range, No. (%) | |||
| 60–69 | 373 (43.4%) | 452 (52.6%) | −0.18 |
| 70–79 | 377 (43.9%) | 256 (29.8%) | 0.31 |
| ≥80 | 109 (12.7%) | 151 (17.6%) | −0.13 |
| Sex, No. (%) | |||
| Women | 538 (62.6%) | 477 (55.5%) | 0.14 |
| Race, No. (%) | |||
| Black or African American | 177 (20.6%) | 122 (14.2%) | 0.18 |
| White | 667 (77.6%) | 708 (82.5%) | −0.13 |
| Other§ | 15 (1.7%) | 29 (3.4%) | −0.09 |
| Hispanic ethnicity, No. (%) | 8 (0.9%) | 10 (1.2%) | −0.03 |
| Highest level of education, No. (%)¶ | |||
| High school graduate/equivalency or less | 168 (19.6%) | 380 (44.3%) | −0.50 |
| Some college or associate’s degree | 176 (20.5%) | 242 (28.1%) | −0.17 |
| Bachelor’s degree | 201 (23.5%) | 127 (14.8%) | 0.25 |
| Postgraduate degree | 311 (36.3%) | 110 (12.8%) | 0.70 |
| Alternative income question, No. (%)# | |||
| Not enough to make ends meet | 15 (4.1%) | N/A | N/A |
| Just enough to make ends meet | 73 (20.1%) | N/A | N/A |
| Some money left over | 95 (26.1%) | N/A | N/A |
| More than enough money left over | 181 (49.7%) | N/A | N/A |
| Medical conditions, No. (%)** | |||
| Hypertension | 428 (50.2%) | 465 (54.6%) | −0.09 |
| High cholesterol | 412 (48.4%) | 530 (62.2%) | −0.28 |
| Depression | 172 (20.2%) | 128 (15.0%) | 0.15 |
| Diabetes | 115 (13.5%) | 192 (22.5%) | −0.22 |
| Cancer | 204 (23.9%) | 204 (23.9%) | 0.00 |
| Heart attack | 33 (3.9%) | 119 (14.0%) | −0.29 |
| Kidney disease | 22 (2.6%) | 44 (5.2%) | −0.12 |
| Stroke | 37 (4.3%) | 79 (9.3%) | −0.17 |
| APOE ε4 carrier, No. (%)†† | 229 (30.2%) | 219 (28.8%) | 0.03 |
| Informant AD8, mean (SD)‡‡ | 0.9 (1.7) | N/A | N/A |
| Participant AD8, mean (SD)§§ | 0.5 (1.3) | N/A | N/A |
| MoCA, mean (SD) | 25.3 (3.8) | N/A | N/A |
| Overall abnormal cognitive status¶¶ | 239 (27.8%) | 172 (20.0%) | 0.20 |
Enrolled group refers to actual SEABIRD enrollment into the study.
Enrollment goal numbers are based on 2020 American Community Survey 5-Year Estimates data for population 60 or 65 years and over in the St. Louis, MO-IL Metro Area unless otherwise noted.
The threshold for evaluation of differences used was 0.1.
Other race includes Asian, Native Hawaiian or other Pacific Islander, more than one race, and unknown/not reported.
Data available for n=856 participants.
Alternative income question: Thinking about the past year, at the end of the month do you generally… not have enough money to make ends meet, just have enough money to make ends meet, have some money left over, have more than enough money left over? Data included from 364 participants due to the addition of this item after many participants were already enrolled. No data is available for the target group as this is not a US Census item.
Participants were asked: “Do you or have you had any of the following conditions?” Data available for n=852 participants. Enrollment goal comorbidity data is based on a 2013 Missouri Department of Health and Senior Services report for prevalence of chronic diseases in Missouri older adults age 65+.
Data available for n=759 participants. Enrollment goal estimated from 2022 Alzheimer’s Disease Facts and Figures Alzheimer’s Association Report.
Data available for n=618 participants.
Data available for n=669 participants.
Enrolled cohort overall cognitive status was determined by a composite of the MoCA and AD8. Enrollment goal was estimated from nationally representative studies.