Table 1.
Baseline Characteristics of Text Messaging–Based Diabetes Prevention Program Participants.
| Characteristics | Consented for text-messaged DPP (n = 309) | Included in primary analysis (n = 163) | Excluded from primary analysis (n = 146) | Included vs excluded, P value |
|---|---|---|---|---|
| Female, n (%) | 194 (62.8) | 105 (64.4) | 89 (61.0) | .53 |
| Age, years, mean ± SD | 52.8 ± 12.0 | 52.8 ± 12.1 | 52.8 ± 12.0 | .99 |
| Ethnicity, n (%) | ||||
| Hispanic | 76 (24.6) | 32 (19.6) | 44 (30.1) | .07 |
| Non-Hispanic | 171 (55.3) | 100 (61.4) | 71 (48.6) | |
| Declined/Unknown | 30 (9.7) | 17 (10.4) | 13 (8.9 | |
| Missing | 23 (10.4) | 14 (8.6) | 18 (12.3) | |
| Race, n (%) | ||||
| Black | 19 (6.2) | 11 (6.8) | 8 (5.5) | .27 |
| White | 107 (34.6) | 59 (36.2) | 48 (32.9) | |
| Asian | 44 (14.2) | 26 (16.0) | 18 (12.3) | |
| Other | 74 (24.0) | 32 (19.6) | 42 (28.8) | |
| Declined/Unknown | 33 (10.7) | 21 (12.9) | 12 (8.2) | |
| Missing | 32 (10.4) | 14 (8.6) | 18 (12.3) | |
| Base weight, lb, mean ± SD | 197.7 ± 47.6 | 201.8 ± 50.5 | 193.1 ± 43.8 | .11 |
| Base BMI, mean ± SD (n = 276) | 32.2 ± 6.5 | 32.8 ± 6.9 | 31.5 ± 5.9 | .09 |
| Base HbA1c %, mean ± SD (n = 268) | 5.9 ± 0.3 | 6.0 ± 0.3 | 5.9 ± 0.3 | .47 |
Abbreviations: DPP, diabetes prevention program; SD, standard deviation; BMI, body mass index.