TABLE 1.
Baseline characteristics of the iNPHORM longitudinal panel: anthropometric and sociodemographic characteristics
| Characteristics | Overall (n = 978) | T1DM (n = 163) | T2DM (n = 815) |
|---|---|---|---|
| Age, years | |||
| Mean (SD) | 50.97 (14.29) | 44.61 (13.82) | 52.24 (14.05) |
| Median (IQR) | 52 (24) | 44 (20) | 53 (23) |
| Missing/unknown | 0 | 0 | 0 |
| Sex assigned at birth, n (%) | |||
| Male | 485 (49.59) | 56 (34.36) | 429 (52.64) |
| Female | 493 (50.41) | 107 (65.64) | 386 (47.36) |
| Missing/unknown, n (%) | 0 | 0 | 0 |
| BMI, kg/m2 | |||
| Median (IQR) | 30.35 (12.05) | 26.34 (7.13) | 31.45 (12.42) |
| Missing/unknown, n (%) | 6 (0.61) | 0 | 6 (0.74) |
| Marital status, n (%) | |||
| Married | 615 (62.88) | 94 (57.67) | 521 (63.93) |
| Divorced, separated, widowed | 162 (16.56) | 25 (15.34) | 137 (16.81) |
| Never married | 200 (20.45) | 44 (26.99) | 156 (19.14) |
| Missing/unknown, n (%) | 1 (0.10) | 0 | 1 (0.12) |
| Race, n (%) | |||
| White alone | 776 (79.35) | 148 (90.80) | 628 (77.06) |
| Part-White multiracial | 37 (3.78) | 3 (1.84) | 34 (4.17) |
| Non-White | 143 (14.62) | 10 (6.13) | 133 (16.32) |
| Missing/unknown, n (%) | 22 (2.25) | 2 (1.23) | 20 (2.45) |
| Highest level of education, n (%) | |||
| High school, some high school, or Grade 8 | 170 (17.38) | 30 (18.40) | 140 (17.18) |
| College degree or some college | 627 (64.11) | 105 (64.42) | 522 (64.05) |
| Degree beyond first college degree | 181 (18.51) | 28 (17.18) | 153 (18.77) |
| Missing/unknown, n (%) | 0 | 0 | 0 |
| Employment status, n (%) | |||
| Full-time | 427 (43.66) | 72 (44.17) | 355 (43.56) |
| Part-time | 81 (8.28) | 21 (12.88) | 60 (7.36) |
| Unemployed, retired, or a student | 470 (48.06) | 70 (42.94) | 400 (49.08) |
| Missing/unknown, n (%) | 0 | 0 | 0 |
| Gross annual household income, n (%) | |||
| <$25 000 | 167 (17.08) | 22 (13.50) | 145 (17.79) |
| $25 000-$54 999 | 266 (27.20) | 39 (23.93) | 227 (27.85) |
| $55 000-$84 999 | 211 (21.57) | 53 (32.52) | 158 (19.39) |
| $85 000-$114 999 | 149 (15.24) | 24 (14.72) | 125 (15.34) |
| $115 000-$144 999 | 64 (6.54) | 7 (4.29) | 57 (6.99) |
| ≥$145 000 | 112 (11.45) | 14 (8.59) | 98 (12.02) |
| Missing/unknown, n (%) | 9 (0.92) | 4 (2.45) | 5 (0.61) |
| Insurance, n (%) | |||
| Private insurance plan | 420 (42.94) | 88 (53.99) | 332 (40.74) |
| Government-assistance plan | 319 (32.62) | 47 (28.83) | 272 (33.37) |
| Multiple insurance plans and other insurance plans | 221 (22.60) | 23 (14.11) | 198 (24.29) |
| Out-of-pocket (i.e. no insurance coverage) | 18 (1.84) | 5 (3.07) | 13 (1.60) |
| Missing/unknown, n (%) | 0 | 0 | 0 |
Abbreviations: BMI, body mass index; IQR, interquartile range; SD, standard deviation; T1DM, type 1 diabetes mellitus; T2DM, type 2 diabetes mellitus.