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. 2024 Jul 29;7(7):e2422749. doi: 10.1001/jamanetworkopen.2024.22749

Table 1. Characteristics of 624 Participants Within the Overall Follow-Up Sample, Analytic vs Nonanalytic Sample.

Characteristic Proportionsa P value of difference
Analytic sample (n = 342) Nonanalytic sample (n = 282)
Current age, mean (SD), y 39.2 (1.1) 39.9 (1.4) <.001b
Race and ethnicity
Black 171 (50.0) 136 (48.2) .66
White 171 (50.0) 146 (51.8)
Annual household income at age 9-10 y, $
<10 000 60 (17.5) 52 (18.4) .90
10 000-19 999 58 (17.0) 51 (18.1)
20 000-39 999 97 (28.4) 76 (27.0)
≥40 000 110 (32.2) 93 (33.0)
Missing 17 (5.0) 10 (3.6)
Highest parental educational attainment at age 9-10 y
<High school graduate 79 (23.1) 54 (19.2) .29
Some college 162 (47.4) 129 (45.7)
College graduate or higher 101 (29.5) 98 (34.8)
Missing 0 1 (0.4)
Single parent household at age 9-10 y 119 (34.8) 88 (31.2) .34
No. of siblings at age 9-10 y, mean (SD) 1.2 (1.1) 1.4 (1.2) .11
Current BMI, mean (SD) 32.5 (10.0) 30.7 (7.8) .02b
Missing 0 6 (2.1) .007b
Current status of ever smoking
Yes 150 (43.9) 124 (44.0) .09
No 192 (56.1) 154 (54.6)
Missing 0 4 (1.4)
Chronic health condition diagnosed 164 (48.0) 123 (43.6) .28
Current medication usage 58 (17.0) 34 (12.1) .09
Total energy intake, mean (SD), kcal 2019.4 (786.4) NA NA
Dietary exposures, mean (SD)
aMED score 3.9 (1.9) NA NA
AHEI-2010 score 55.4 (14.7) NA NA
ENI score 13.5 (5.0) NA NA
Added sugar, g 61.5 (44.6) NA NA
GrimAge2, mean (SD), yc 61.3 (5.7) NA NA

Abbreviations: AHEI-2010, Alternate Healthy Eating Index 2010 (possible score range, 0-110); aMED, Alternate Mediterranean Diet (possible score range, 0-9); BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); ENI, Epigenetic Nutrient Index (possible score range, 0-24); NA, not applicable.

a

Unless otherwise noted, data are given as number (percentage).

b

Statistically significant result (P < .05).

c

Epigenetic clock measure.