Table 3.
Baseline characteristics of the SNAS cohort and associations with 25-hydroxyvitamin D and albuminuria
| Variable | No of participants |
25-hydroxyvitamin D (ng/ml) Mean (SD) |
p-value | Albuminuria prevalence Number (%) |
p-value |
|---|---|---|---|---|---|
|
| |||||
| All participants | 938 | 23.9 (13.5) | 77 (8.2) | ||
|
| |||||
| Age | |||||
| < 6 years old | 102 | 26.2 (14.1) | 5 (4.9) | ||
| 6–11 years old | 479 | 24.6 (13.7) | 35 (7.3) | ||
| 12–19 years old | 356 | 22.4 (12.9) | 37 (10.4) | ||
| 0.011 | 0.1196 | ||||
|
| |||||
| Sex | |||||
| Female | 448 | 23.1 (13.7) | 48 (10.7) | ||
| Male | 490 | 24.6 (13.4) | 29 (5.9) | ||
| 0.0906 | 0.0075 | ||||
|
| |||||
| Race/ethnicity | |||||
| Non-Hispanic | |||||
| white | 732 | 25.3 (13.7) | 58 (7.9) | ||
| Non-Hispanic | 85 | 15.5 (9.3) | 8 (9.4) | ||
| black | 121 | 21.4 (12.7) | 11(9.1) | ||
| Other | <.0001 | 0.8322 | |||
|
| |||||
| Body Mass Index | |||||
| Normal | 608 | 25.2 (13.9) | 55 (9.0) | ||
| Overweight | 194 | 22.2 (12.5) | 11 (5.7) | ||
| Obese | 121 | 19.9 (12.3) | 9 (7.5) | ||
| <.0001 | 0.3139 | ||||
|
| |||||
| Blood pressure | |||||
| Normal | 928 | 24.0 (13.6) | 77(8.3) | ||
| Hypertension | 7 | 23.2 (13.3) | 0 (0) | ||
| 0.8802 | 0.4263 | ||||
|
| |||||
| Hemoglobin A1c (%) | |||||
| <8% | 615 | 24.1 (13.6) | 41 (6.7) | ||
| ≤8% | 322 | 23.5 (13.4) | 36 (11.2) | ||
| 0.5306 | 0.0169 | ||||
Values are expressed either as means with SD in parentheses or prevalence in numbers with percent in parentheses. Albuminuria is defined as in Table 1. To convert 25-hydroxyvitamin D in ng/mL to nmol/L, multiply by 2.496. BMI categories: normal is < 85th percentile, overweight is 85- 94th percentile, obese is ≥ 95th percentile. Hypertension was defined as BP≥90% for age, sex and height or use of antihypertensive medications.