Table 2.
Multivariate linear regression analyses on serum osmolarity, hematocrit, NAD intake, and systolic blood pressure
| a. Serum osmolarity | ||||
|
| ||||
| Coefficient | 95% CI |
Standardized
coefficient |
p value | |
| Colder/Warmer seasons | −0.619 | (−1.054, −0.183) | −0.087 | 0.005 |
| Women/Men | −1.152 | (−1.924, −0.379) | −0.149 | 0.004 |
| Age (y.o.) | 0.132 | (0.102, 0.162) | 0.322 | <0.001 |
| Height (cm) | −0.020 | (−0.065, 0.025) | −0.044 | n.s. |
| BodyWeight (Kg) | 0.037 | (0.006, 0.069) | 0.104 | 0.020 |
| SBP | −0.010 | (−0.035, 0.015) | −0.046 | n.s. |
| DBP | 0.025 | (−0.013, 0.062) | 0.073 | n.s. |
| Ht. (%) | 0.079 | (0.003, 0.154) | 0.077 | 0.040 |
| NAD intake (mL/day) | 0.000 | (0.000, 0.000) | −0.026 | n.s. |
| Hypertension | −0.357 | (−1.119, 0.405) | −0.034 | n.s. |
| Dyslipidemia | 0.353 | (−0.075, 0.781) | 0.050 | n.s. |
| Diabetes | 0.473 | (−1.001, 1.947) | 0.019 | n.s. |
| Current drinker | −0.263 | (−0.718, 0.191) | −0.037 | n.s. |
| Current smoker | 0.386 | (−0.674, 1.446) | 0.022 | n.s. |
| Sleeping hours | −0.099 | (−0.310, 0.112) | −0.028 | n.s. |
| Walking habit | 0.015 | (−0.445, 0.475) | 0.002 | n.s. |
| Living alone | 0.062 | (−0.642, 0.766) | 0.005 | n.s. |
| b. Ht. | ||||
|
| ||||
| Coefficient | 95% CI |
Standardized
coefficient |
p value | |
| Colder/Warmer seasons | 0.674 | (0.315, 1.033) | 0.096 | <0.001 |
| Women/Men | 3.487 | (2.883, 4.091) | 0.462 | <0.001 |
| Age (y.o.) | −0.018 | (−0.044, 0.007) | −0.045 | n.s. |
| Height (cm) | −0.025 | (−0.062, 0.013) | −0.055 | n.s. |
| BodyWeight (Kg) | 0.050 | (0.024, 0.076) | 0.144 | <0.001 |
| SBP | 0.002 | (−0.019, 0.023) | 0.012 | n.s. |
| DBP | 0.060 | (0.029, 0.091) | 0.182 | <0.001 |
| Serum Osmolarity (mOsm/L) | 0.054 | (0.002, 0.105) | 0.055 | 0.040 |
| NAD intake (mL/day) | 0.000 | (0.000, 0.000) | 0.021 | n.s. |
| Hypertension | −0.481 | (−1.111, 0.148) | −0.046 | n.s. |
| Dyslipidemia | 0.674 | (0.322, 1.025) | 0.097 | <0.001 |
| Diabetes | 0.882 | (−0.336, 2.100) | 0.036 | n.s. |
| Current drinker | −0.084 | (−0.460, 0.293) | −0.012 | n.s. |
| Current smoker | 0.396 | (−0.481, 1.272) | 0.023 | n.s. |
| Sleeping hours | 0.186 | (0.012, 0.361) | 0.054 | 0.036 |
| Walking habit | 0.247 | (−0.133, 0.627) | 0.035 | n.s. |
| Living alone | 0.154 | (−0.428, 0.737) | 0.013 | n.s. |
| c. NAD intake | ||||
|
| ||||
| Coefficient | 95% CI |
Standardized
coefficient |
p value | |
| Colder/Warmer seasons | −306.553 | (−390.5, −222.6) | −0.222 | <0.001 |
| Women/Men | −300.672 | (−452.4, −148.9) | −0.202 | <0.001 |
| Age (y.o.) | 3.352 | (−2.726, 9.43) | 0.042 | n.s. |
| Height (cm) | −3.001 | (−11.92, 5.919) | −0.034 | n.s. |
| BodyWeight (Kg) | 9.335 | (3.125, 15.55) | 0.135 | 0.003 |
| SBP | −0.12 | (−5.122, 4.882) | −0.003 | n.s. |
| DBP | −2.988 | (−10.43, 4.455) | −0.046 | n.s. |
| Serum Osmolarity (mOsm/L) | −5.124 | (−17.4, 7.153) | −0.027 | n.s. |
| Ht. (%) | 6.106 | (−8.74, 20.95) | 0.031 | n.s. |
| Hypertension | −7.686 | (−157.9, 142.5) | −0.004 | n.s. |
| Dyslipidemia | −60.487 | (−144.8, 23.82) | −0.044 | n.s. |
| Diabetes | 133.414 | (−156.9, 423.7) | 0.028 | n.s. |
| Current drinker | −64.29 | (−153.9, 25.31) | −0.047 | n.s. |
| Current smoker | 58.673 | (−150.2, 267.6) | 0.017 | n.s. |
| Sleeping hours | −9.01 | (−50.6, 32.58) | −0.013 | n.s. |
| Walking habit | −141.431 | (−231.6, −51.28) | −0.102 | 0.002 |
| Living alone | 186.627 | (48.33, 324.9) | 0.083 | 0.008 |
| d. SBP | ||||
|
| ||||
| Coefficient | 95% CI |
Standardized
coefficient |
p value | |
| Colder/Warmer seasons | −0.421 | (−1.49, 0.651) | −0.013 | n.s. |
| Women/Men | −1.648 | (−3.55, 0.255) | −0.047 | n.s. |
| Age (y.o.) | 0.249 | (0.175, 0.323) | 0.133 | <0.001 |
| Height (cm) | −0.185 | (−0.3, −0.07) | −0.088 | 0.001 |
| BodyWeight (Kg) | 0.038 | (−0.04, 0.116) | 0.023 | n.s. |
| DBP | 1.113 | (1.051, 1.175) | 0.728 | <0.001 |
| Serum Osmolarity (mOsm/L) | −0.061 | (−0.21, 0.092) | −0.013 | n.s. |
| NAD intake (mL/day) | <−0.001 | (−0, 0.001) | −0.001 | n.s. |
| Ht. (%) | 0.022 | (−0.16, 0.207) | 0.005 | n.s. |
| Hypertension | 9.382 | (7.604, 11.16) | 0.194 | <0.001 |
| Dyslipidemia | 1.082 | (0.032, 2.131) | 0.033 | 0.043 |
| Diabetes | 0.505 | (−3.12, 4.124) | 0.004 | n.s. |
| Current drinker | 0.219 | (−0.9, 1.337) | 0.007 | n.s. |
| Current smoker | 0.607 | (−2, 3.21) | 0.008 | n.s. |
| Sleeping hours | 0.409 | (−0.11, 0.927) | 0.026 | n.s. |
| Walking habit | −0.104 | (−1.23, 1.025) | −0.003 | n.s. |
| Living alone | −0.184 | (−1.91, 1.546) | −0.003 | n.s. |
SBP; systolic blood pressure, DBP; diastolic blood pressure, NAD; non-alcohol drink. Walking habit; >=2 days/a week, for >=30 min. n.s.; not significant (p >= 0.05). Warmer seasons; from May to October, Colder seasons; from November to April.
Coefficient; partial regression coefficient, Standardized coefficient; standardized partial regression coefficient.