Table 2 Sociodemographic characteristics, lifestyle and season of blood collection by 25OHD serum level by serum 25-hydroxyvitamin D (25OHD) concentrations in participants of the Brazilian Longitudinal Study of Aging (ELSI), 2015–16.
Characteristics | 25OHD in nmol/L | ||
|---|---|---|---|
< 50 nmol % (95% CI) n = 335 | ≥ 50 nmol % (95% CI) n = 995 | p value | |
Age group (years) | |||
50–64 | 58 (49, 66) | 65 (62, 69) | < 0.001 |
65–74 | 19 (14, 25) | 23 (20, 26) | |
75 + | 23 (18, 30) | 12 (9.7, 14) | |
Women | 60 (49, 69) | 53 (49, 57) | 0.2 |
Living alone | 10.2 (6.6, 15) | 7.7 (6.1, 9.6) | 0.3 |
Race/ethnicity | |||
White | 46 (32, 60) | 44 (35, 53) | 0.5 |
Brown | 42 (32, 53) | 44 (37, 51) | |
Black | 10.8 (5.8, 19) | 9.1 (6.2, 13) | |
Yellow/indigenous | 1.5 (0.5–3.9) | 2.8 (1.5, 5.2) | |
Geographical region | |||
North | 1.7 (0.1, 5.9) | 6.3 (2.4, 15) | < 0.001 |
Northeast | 13.0 (5.4, 28) | 26 (13.2, 45) | |
Center-West | 5.4 (1.4, 18) | 6.8 (2.2, 19) | |
Southeast | 49 (28, 71) | 47 (28, 66) | |
South | 30 (12, 59) | 14 (5.1, 33) | |
Urban residence | 88 (79, 93) | 95 (87, 98) | < 0.001 |
Educational level (years) | |||
< 4 | 29 (22,39) | 33 (29, 38) | 0.4 |
4–7 | 29 (22, 37) | 31 (26, 35) | |
> 8 | 41 (33, 50) | 36 (30, 42) | |
Household income per capita (tertiles) | 0.1 | ||
Lowest | 26 (18, 36) | 31 (26, 37) | |
2nd | 29 (24, 34) | 31 (28, 34) | |
Highest | 45 (36, 54) | 37 (31, 43) | 0.1 |
Daily consumption of fish per week | |||
Never or less than once | 62 (52, 70) | 69 (44, 63) | 0.05 |
Once | 23 (17, 31) | 22 (17, 27) | |
Twice | 9.3 (6.1, 14) | 12 (9.6, 14) | |
Three times or more | 5.6 (2.1, 14) | 8.5 (5.0, 15) | |
Current smokers | 21 (15, 29) | 14 (12, 16) | 0.4 |
Physical activity (< 150 min per week) | 42 (33, 52) | 29 (25, 34) | 0.007 |
Obesity (≥ 30 kg/m2) | 37 (30 43) | 31 (28, 34) | 0.1 |
Basic activities of daily living limitation | 27 (19, 36) | 17 (14, 20) | 0.001 |
Spring/summer | 74 (60, 85) | 66 (52, 78) | 0.1 |
No. participants (unweighted) | 335 | 1.929 | |
