Table 3.
Baseline Sociodemographic and Clinical Characteristics
| Characteristics | Total n = 153 | Placebo n = 76 | Magnesium bisglycinate n = 77 |
|---|---|---|---|
| Mean ± SD | Mean ± SD | Mean ± SD | |
| Age, [years] | 41.5 ± 13.1 | 42.1 ± 12.9 | 40.9 ± 13.3 |
| Weight, [kg] | 74.3 ± 16.5 | 75.5 ± 19.6 | 73.0 ± 12.7 |
| BMI, [kg/m2] | 25.4 ± 4.8 | 25.7 ± 5.5 | 25.1 ± 4.1 |
| Sex, n (%) | |||
| Male | 31 (20.3) | 16 (21.1) | 15 (19.5) |
| Female | 122 (79.7) | 60 (78.9) | 62 (80.5) |
| Occupational Status, n (%) | |||
| Unemployed | 6 (3.9) | 3 (3.9) | 3 (3.9) |
| Student | 33 (21.6) | 11 (14.5) | 22 (28.6) |
| Worker | 109 (68.0) | 59 (73.7) | 50 (62.3) |
| Pensioner | 5 (3.3) | 3 (3.9) | 2 (2.6) |
| Physical activity, n (%) | |||
| Never, rarely (1–2) | 52 (34.0) | 30 (39.5) | 22 (28.6) |
| Moderate (3–4) | 81 (52.9) | 32 (42.1) | 49 (63.6) |
| Often (5) | 19 (12.4) | 13 (17.1) | 6 (7.8) |
| No answer (6) | 1 (0.7) | 1 (1.3) | 0 (0.0) |
| Dietary form, n (%) | |||
| Omnivore | 107 (69.9) | 53 (69.7) | 54 (70.1) |
| Vegetarian | 36 (23.5) | 18 (23.7) | 18 (23.4) |
| Vegan | 5 (3.3) | 3 (3.9) | 2 (2.6) |
| No answer | 5 (3.3) | 2 (2.6) | 3 (3.9) |
| Caffeine intake, n (%) | |||
| None (<1 cup/day) | 26 (17.0) | 16 (21.1) | 10 (13.0) |
| Moderate | 89 (58.2) | 43 (56.6) | 46 (59.7) |
| High | 38 (38.0) | 17 (22.4) | 21 (27.3) |
| Magnesium-rich diet, n (%) | |||
| Almost never | 23 (15.0) | 13 (17.1) | 10 (13.0) |
| Sometimes | 39 (25.5) | 22 (28.9) | 17 (22.1) |
| Regularly | 53 (34.6) | 25 (32.9) | 28 (36.4) |
| Often | 38 (24.8) | 16 (21.1) | 22 (28.6) |
Notes: No statistically significant differences were observed between the groups at baseline except for physical activity (p=0.039).
Abbreviations: BMI, body mass index; SD, standard deviation.