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. Author manuscript; available in PMC: 2024 Jul 1.
Published in final edited form as: Alzheimers Dement. 2023 Feb 1;19(7):3138–3147. doi: 10.1002/alz.12957

Table 1.

Descriptive statistics stratified by education and for the entire STAR sample

≤ Bachelor’s
n=499(65.31%)
Bachelor’s
n=131(17.14%)
Graduate
n=134(17.54%)
Whole Sample
(n = 764)
Continuous Variables Mean(SD) Mean(SD) Mean(SD) Mean(SD)
Age in years 68.9 (8.93) 66.7 (8.08) 70.0 (8.63) 68.7(8.78)
Income Range (logarithmic units) 10.9 (0.68) 11.2 (0.60) 11.4 (0.51) 11.1 (0.67)
Later-life Cognition Z-Score −0.23 (0.98) 0.40 (0.86) 0.45 (0.93) 0.00 (1.00)
Verbal Episodic Memory Z-Score −0.13 (0.98) 0.30 (1.01) 0.18 (1.00) 0.00 (1.00)
Semantic Memory Z-Score −0.19 (1.01) 0.28 (0.80) 0.43 (0.96) 0.00 (1.00)
Executive Function Z-Score −0.24 (0.97) 0.41 (0.87) 0.48 (0.93) 0.00 (1.00)
Depression Z-Score 0.06 (1.05) −0.04 (0.84) −0.16 (0.93) 0.00 (1.00)
Major Lifetime Discrimination Z-Score −0.13 (0.96) 0.21 (1.00) 0.25 (1.07) 0.00 (1.00)
Everyday Discrimination Z-Score −0.03 (1.00) 0.10 (0.98) 0.00 (1.02) 0.00 (1.00)
Categorical Variables
Gender n (%) n (%) n (%) n (%)
 Female 337 (44.1) 97 (12.7) 88 (11.5) 522 (68.3)
 Male 162 (21.2) 34 (4.5) 46 (6.0) 242 (31.7)
Growing-up Financial Position
 Pretty well off 49 (6.4) 8 (1.1) 20 (2.6) 77 (10.1)
 About average 270 (35.3) 86 (11.3) 73 (9.6) 429 (56.2)
 Poor or It varied 169 (22.1) 36 (4.7) 39 (5.1) 244 (31.9)
Maternal Education
 0-12 Years 291 (38.1) 80 (10.5) 68 (8.9) 439 (57.5)
 Some college/Associate’s 78 (10.2) 27 (3.5) 25 (3.3) 130 (17.0)
 Bachelor’s 29 (3.8) 11(1.4) 20 (2.6) 60 (7.9)
 Master’s or Professional 8 (1.1) 6 (0.80) 13 (1.7) 27 (3.5)
Paternal Education
 0-12 Years 276 (36.2) 81 (10.6) 74 (9.7) 431 (56.4)
 Some college/Associate’s 47 (6.2) 15 (2.0) 16 (2.1) 78 (10.2)
 Bachelor’s 15 (2.0) 8 (1.1) 15 (2.0) 38 (5.0)
 Master’s or Professional 11 (1.4) 8 (1.1) 14 (1.8) 33 (4.3)
Maternal Employment
 Mostly Full-Time 249 (32.6) 76 (10.0) 76 (10.0) 401 (52.5)
 Mostly Part-Time or Not Employed 234 (30.6) 53 (6.9) 55 (7.2) 342 (44.8)
Paternal Employment
 Mostly Full-Time 427 (55.9) 118 (15.5) 124 (16.2) 669 (87.6)
 Mostly Part-Time or Not Employed 22 (2.9) 3 (0.4) 3 (0.4) 28 (3.7)
Worry About Meeting Expenses
 Always or Often 65 (8.5) 12 (1.6) 11 (1.4) 88 (11.5)
 Sometimes or Never 399 (52.2) 118 (15.5) 121 (15.8) 638 (83.5)
Worry About Meeting Expenses- Past 30 Days
 All or Nearly all the time 310 (40.6) 78 (10.2) 96 (12.6) 484 (63.4)
 Sometimes, Hardly ever, or Never 158 (20.7) 52 (6.8) 35 (4.6) 245 (32.1)
Currently Married
 Yes 173 (22.6) 45 (5.9) 63 (8.3) 281 (36.8)
 No 311 (40.71) 84 (11.0.99) 69 (9.0) 464 (60.7)
Alcohol Volume Past 3 Months
 None 232 (30.4) 51 (6.7) 50 (6.5) 333 (43.59)
 1-2 drinks on days drinking 226 (29.6) 66 (8.6) 77 (10.1) 369 (48.3)
 3 or more drinks on days drinking 35 (4.6) 13 (1.7) 7 (0.9) 55 (7.2)

Note. SD – Standard deviation.