Table 1.
Descriptive Characteristics of Valid Versus Invalid Records.
| Total | Total |
Valid |
Invalid |
P value |
|---|---|---|---|---|
| 227 | 138 (60.8%) | 89 (39.2%) | ||
| Participation | ||||
| Completed immediate follow-up | 223 (98.2%) | 134 (97.1%) | 89 (100.0%) | .1051 |
| Time to complete immediate follow-up (in minutes) | <.0001 | |||
| Median (interquartile range) | 8.00 (2.0-13.0) | 12.00 (9.0-16.0) | 1.00 (1.0-3.0) | |
| Completed 2-week follow-up | 192 (84.6%) | 122 (88.4%) | 70 (78.7%) | .0469 |
| Randomization | .8499 | |||
| Peer-delivered materials | 114 (50.2%) | 70 (50.7%) | 44 (49.4%) | |
| Provider-delivered materials | 113 (49.8%) | 68 (49.3%) | 45 (50.6%) | |
| Sociodemographics | ||||
| Age at baseline (years) | .1292 | |||
| Mean (standard deviation) | 20.63 (1.57) | 20.49 (1.53) | 20.83 (1.62) | |
| Sex | <.0001 | |||
| Male | 81 (35.7%) | 27 (19.6%) | 54 (60.7%) | |
| Female | 146 (64.3%) | 111 (80.4%) | 35 (39.3%) | |
| Race/ethnicity | .0005 | |||
| White, non-Hispanic | 201 (88.5%) | 114 (82.6%) | 87 (97.8%) | |
| Hispanic or non-white | 26 (11.5%) | 24 (17.4%) | 2 (2.2%) | |
| Parental education | <.0001 | |||
| ≤High school or unknown | 17 (7.5%) | 11 (8.0%) | 6 (6.7%) | |
| Some college, no degree | 26 (11.5%) | 20 (14.5%) | 6 (6.7%) | |
| Associate’s degree | 85 (37.4%) | 14 (10.1%) | 71 (79.8%) | |
| Bachelor’s degree | 54 (23.8%) | 48 (34.8%) | 6 (6.7%) | |
| Graduate degree | 45 (19.8%) | 45 (32.6%) | 0 (0.0%) | |
| Year in school | <.0001 | |||
| Freshman | 43 (18.9%) | 19 (13.8%) | 24 (27.0%) | |
| Sophomore | 62 (27.3%) | 42 (30.4%) | 20 (22.5%) | |
| Junior | 87 (38.3%) | 42 (30.4%) | 45 (50.6%) | |
| Senior | 21 (9.3%) | 21 (15.2%) | 0 (0.0%) | |
| 5th year or grad student | 14 (6.2%) | 14 (10.1%) | 0 (0.0%) | |
| Enrollment status | .0006 | |||
| Full-time | 210 (92.5%) | 121 (87.7%) | 89 (100.0%) | |
| Part-time or other | 17 (7.5%) | 17 (12.3%) | 0 (0.0%) | |
| Region of college/university | .0685 | |||
| US, Northeast | 77 (33.9%) | 38 (27.5%) | 39 (43.8%) | |
| US, Midwest | 53 (23.3%) | 35 (25.4%) | 18 (20.2%) | |
| US, South | 76 (35.5%) | 51 (37.0%) | 25 (28.1%) | |
| US, West | 17 (7.5%) | 10 (7.2%) | 7 (7.9%) | |
| Outside US | 4 (1.8%) | 4 (2.9%) | 0 (0.0%) | |
| Health and diabetes management | ||||
| Age at diagnosis (years) | <.0001 | |||
| Mean (standard deviation) | 12.11 (4.81) | 10.88 (5.17) | 14.03 (3.41) | |
| Last hemoglobin A1c (HbA1c, %) | .1721 | |||
| Mean (standard deviation) | 7.57 (1.23) | 7.62 (1.26) | 7.50 (1.19) | |
| Insulin pump use | <.0001 | |||
| Current user | 205 (90.3%) | 116 (84.1%) | 89 (100.0%) | |
| Not a current user | 22 (9.7%) | 22 (15.9%) | 0 (0.0%) | |
| Continuous glucose monitoring (CGM) use | <.0001 | |||
| Current user | 172 (75.8%) | 83 (60.1%) | 89 (100.0%) | |
| Not a current user | 55 (24.2%) | 55 (39.9%) | 0 (0.0%) | |
| Average blood sugar checks | .0195 | |||
| 0-2 times/day | 48 (21.1%) | 25 (18.1%) | 23 (25.8%) | |
| 3-4 times/day | 91 (40.1%) | 52 (37.7%) | 39 (43.8%) | |
| 5-6 times/day | 59 (26.0%) | 36 (26.1%) | 23 (25.8%) | |
| 7+ times/day | 29 (12.8%) | 25 (18.1%) | 4 (4.5%) | |
| Self-rated health | <.0001 | |||
| Fair/poor | 25 (11.0%) | 14 (10.1%) | 11 (12.4%) | |
| Good | 105 (46.3%) | 61 (44.2%) | 44 (49.4%) | |
| Very good | 67 (29.5%) | 54 (39.1%) | 13 (14.6%) | |
| Excellent | 30 (13.2%) | 9 (6.5%) | 21 (23.6%) | |
| Recruitment source | ||||
| Sampling framea | ||||
| College Diabetes Network (CDN) | 148 (65.2%) | 87 (63.0%) | 61 (68.5%) | .3961 |
| TuDiabetes | 40 (17.6%) | 13 (9.4%) | 27 (30.3%) | <.0001 |
| Other source | 45 (19.8%) | 42 (30.4%) | 3 (3.4%) | <.0001 |
| Platforma | ||||
| CDN Facebook | 74 (32.6%) | 49 (35.5%) | 25 (28.1%) | .2444 |
| CDN Twitter | 10 (4.4%) | 4 (2.9%) | 6 (6.7%) | .1684 |
| TuDiabetes Facebook | 19 (8.4%) | 8 (5.8%) | 11 (12.4%) | .0813 |
| TuDiabetes Twitter | 8 (3.5%) | 0 (0.0%) | 8 (9.0%) | .0030 |
| TuDiabetes Instagram | 3 (1.3%) | 0 (0.0%) | 3 (3.4%) | .0299 |
| CDN Newsletter | 68 (30.0%) | 37 (26.8%) | 31 (34.8%) | .1978 |
| TuDiabetes Newsletter | 5 (2.2%) | 1 (0.7%) | 4 (4.5%) | .0589 |
| TuDiabetes Website | 4 (1.8%) | 3 (2.2%) | 1 (1.1%) | .5571 |
| Other (from free text response) | .8970 | |||
| Friend | 19 (8.4%) | 18 (13.0%) | 1 (1.1%) | |
| Family/doctor | 11 (4.8%) | 10 (7.2%) | 1 (1.1%) | |
| Other | 19 (8.4%) | 18 (13.0%) | 1 (1.1%) | |
Column percentages are shown. Note that invalid records likely do not reflect unique individuals, instead representing duplicative entries from a small number of persons.
a
Sampling frame and platform are not mutually exclusive.