Table 1.
Baseline Characteristics of Analytic Cohort by Vitamin D levels
| Characteristics (Visit where information collected) | Vitamin D Levels | ||||
|---|---|---|---|---|---|
| <25 nmol/L n=53 (10.0) |
≥25 to <50 nmol/L n=211 (39.8) |
≥50 to <75 nmol/L n=170 (32.0) |
≥75 nmol/L n=96 (18.1) |
P-value | |
| Age (Year 1) | 0.86 | ||||
| 50-59 | 11 (10.9) | 34 (33.7) | 34 (33.7) | 22 (21.8) | |
| 60-69 | 22 (9.4) | 98 (42.1) | 72 (30.9) | 41 (17.6) | |
| 70+ | 20 (10.2) | 79 (40.3) | 64 (32.7) | 33 (16.8) | |
|
| |||||
| Years since menopause (Year 1) | 0.42 | ||||
| <5 | 5 (9.4) | 19 (35.9) | 21 (39.6) | 8 (15.1) | |
| 5-10 | 10 (11.6) | 26 (30.2) | 31 (36.0) | 19 (22.1) | |
| >10 | 38 (9.7) | 166 (42.5) | 118 (30.2) | 69 (17.7) | |
|
| |||||
| Ethnicity (Screening) | <.0001 | ||||
| White | 40 (8.4) | 180 (37.9) | 163 (34.3) | 92 (19.4) | |
| Hispanic | a | 9 (69.2) | a | a | |
| Black | 8 (38.1) | 11 (52.4) | a | a | |
| Other | a | 11 (52.4) | 5 (23.8) | a | |
|
| |||||
| Education (Screening) | 0.84 | ||||
| <HS | a | 13 (50.0) | 6 (23.1) | 5 (19.2) | |
| HS | 31 (10.6) | 109 (37.3) | 97 (33.2) | 55 (18.8) | |
| College | 20 (9.4) | 89 (42.0) | 67 (31.6) | 36 (17.0) | |
|
| |||||
| BMI in kg/m2 (Year 1) | <.01 | ||||
| <25 | 11 (6.6) | 53 (31.7) | 61 (36.5) | 42 (25.2) | |
| 25-30 | 16 (8.5) | 82 (43.6) | 57 (30.3) | 33 (17.6) | |
| >30 | 26 (14.9) | 76 (43.4) | 52 (29.7) | 21 (12.0) | |
|
| |||||
| Physical activity (Year 1) | <.0001 | ||||
| Total MET hours/week | 5.8 (8.2) | 9.3 (10.3) | 14.7 (17.2) | 17.1 (13.7) | |
|
| |||||
| Smoking (Year 1) | 0.02 | ||||
| Never | 38 (12.3) | 130 (41.9) | 91 (29.4) | 51 (16.5) | |
| Past | 9 (4.9) | 71 (38.6) | 63 (34.2) | 41 (22.3) | |
| Current | 6 (16.7) | 10 (27.8) | 16 (44.4) | a | |
|
| |||||
| UV exposure (Screening) | 0.13 | ||||
| Low | 28 (10.2) | 99 (36.1) | 100 (36.5) | 47 (17.2) | |
| High | 25 (9.8) | 112 (43.8) | 70 (27.3) | 49 (19.1) | |
|
| |||||
| HT Use (Screening) | 0.03 | ||||
| Never used | 20 (8.6) | 94 (40.5) | 85 (36.6) | 33 (14.2) | |
| Past user | 14 (15.4) | 42 (46.2) | 20 (22.0) | 15 (16.5) | |
| Current user | 19 (9.2) | 75 (36.2) | 65 (31.4) | 48 (23.2) | |
|
| |||||
| DM trial arm (Screening) | 0.47 | ||||
| Not randomized to DM | 10 (8.3) | 54 (44.6) | 39 (32.2) | 18 (14.9) | |
| Intervention | 20 (12.8) | 61 (39.1) | 51 (32.7) | 24 (15.4) | |
| Control | 23 (9.1) | 96 (37.9) | 80 (31.6) | 54 (21.3) | |
|
| |||||
| Dietary Calcium (mg) (Screening) | 0.06 | ||||
| 719.6 (341.0) | 829.7 (448.7) | 904.3 (469.3) | 868.6 (476.4) | ||
|
| |||||
| Dietary Vitamin D (mg) (Screening) | 0.05 | ||||
| 3.9 (2.4) | 4.5 (2.9) | 5.1 (2.9) | 4.7 (3.1) | ||
|
| |||||
| Supplemental Calcium (mg) (Year 1) | <.01 | ||||
| 144.6 (282.9) | 347.5 (497.8) | 398.7 (446.9) | 432.8 (435.3) | ||
|
| |||||
| Supplemental Vitamin D (mcg) (Year 1) | <.0001 | ||||
| 1.9 (4.2) | 4.5 (5.4) | 5.9 (5.9) | 7.4 (6.2) | ||
|
| |||||
| Total Number of menopausal symptoms | 0.05 | ||||
| 6.8 (3.8) | 6.07 (3.3) | 5.8 (3.2) | 5.3 (3.1) | ||
a
Data not shown as cell size < 5