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. 2022 Summer;40(3):345–353. doi: 10.2337/cd21-0114

TABLE 1.

Baseline Demographics Overall and by Digital DPP Enrollment Status

Total
(N = 3,904)
Not Enrolled
(n = 3,432)
Enrolled
(n = 472)
P
Age, years 69.2 ± 2.9 69.3 ± 2.9 68.7 ± 2.8 <0.001
Female sex 2,155 (55.2) 1,865 (54.3) 290 (61.4) 0.004
Race/ethnicity
Black/African American
Hispanic
Other*
Non-Hispanic White

41 (1.1)
58 (1.5)
123 (3.2)
3,682 (94.3)

32 (0.9)
53 (1.5)
114 (3.3)
3,233 (94.2)

9 (1.9)
5 (1.1)
9 (1.9)
449 (95.1)
0.07
A1C, % 5.94 ± 0.18 5.94 ± 0.18 5.93 ± 0.18 0.31
Height, inches 66.3 ± 3.9 66.3 ± 3.9 65.9 ± 3.9 0.02
Weight, lb 221.5 ± 37.5 221.8 ± 37.4 219.5 ± 38.3 0.22
BMI, kg/m2 35.4 ± 5.1 35.4 ± 5.0 35.5 ± 5.2 0.58
Charlson Comorbidity Index
0
1
2
3+

2,328 (59.6)
858 (22.0)
446 (11.4)
272 (7.0)

2,030 (59.1)
756 (22.0)
401 (11.7)
245 (7.1)

298 (63.1)
102 (21.6)
45 (9.5)
27 (5.7)
0.26
Tobacco use
Never
Former
Current

2,131 (54.6)
1,605 (41.1)
168 (4.3)

1,840 (53.6)
1,431 (41.7)
161 (4.7)

291 (61.7)
174 (36.9)
7 (1.5)
<0.001
Percentage of neighborhood with high school degree or less 0.34 ± 0.14 0.34 ± 0.14 0.31 ± 0.15 <0.001
Median neighborhood household income, $1,000s 63.3 ± 21.5 62.9 ± 21.3 66.9 ± 22.4 <0.001
Exercise per week (self-report at visits), minutes
0
10–140
≥150
Missing

1,895 (48.5)
825 (21.1)
881 (22.6)
303 (7.8)

1,693 (49.3)
717 (20.9)
758 (22.1)
264 (7.7)

202 (42.8)
108 (22.9)
123 (26.1)
39 (8.3)
0.06
Chronic kidney disease 438 (11.2) 389 (11.3) 49 (10.4) 0.54
Hypertension 2,115 (54.2) 1,867 (54.4) 248 (52.2) 0.45
Dyslipidemia 1,219 (31.2) 1,075 (31.3) 144 (30.5) 0.72
Cardiovascular disease 50 (1.3) 47 (1.4) 3 (0.6) 0.18
Mental health diagnosis 899 (23.0) 782 (22.8) 117 (24.8) 0.33
Primary care visits 2 (1–3) 2 (1–3) 2 (1–3) 0.26
Specialty care visits
0
1
2+

709 (18.2)
847 (21.7)
2,348 (60.1)

655 (19.1)
736 (21.4)
2,041 (59.5)

54 (11.4)
111 (23.5)
307 (65.0)
<0.001
Emergency department visits
0
1+

3,308 (84.7)
596 (15.3)

2,899 (84.5)
533 (15.5)

409 (93.2)
63 (13.3)
0.22
 Inpatient visits
0
1+

3,633 (93.1)
271 (6.9)

3,193 (93.0)
239 (7.0)

440 (93.2)
32 (6.8)
0.88
Prescribed metformin
No
Yes

3,817 (97.8)
87 (2.2)

3,355 (97.8)
77 (2.2)

462 (97.9)
10 (2.1)
0.86
Propensity score 0.11 (0.08–0.15) 0.11 (0.08–0.15) 0.14 (0.10–0.18) <0.001

Data are mean ± SD, n (%), or median (interquartile range).

*

Includes Native Americans, Alaskan Natives, Native Hawaiian/Pacific Islander, Asian, and patients who endorsed “other.”

Includes coronary artery disease, congestive heart failure, and/or stroke.

Includes depression, anxiety, and bipolar disorder.