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Table 4 Results of the multiple regression analysis with Hb as the objective variable. Only vascular diameter was found to be significantly correlated with the Hb value in males. In females, age, pulse pressure, vascular diameter, and deprivation score were strongly correlated with the Hb value

From: Unique hemoglobin dynamics in female Tibetan highlanders

Variables Male Female
Estimate Std. error t value Pr(>|t|) Estimate Std. error t value Pr(>|t|)
Intercept − 0.022119 0.120431 − 0.184 0.8549 0.013247 0.073509 0.18 0.8574
Age − 0.176713 0.147861 − 1.195 0.2368 0.239542 0.118526 2.021 0.0465
BMI − 0.030468 0.147861 − 0.22 0.8270 − 0.068577 0.079534 − 0.862 0.3910
SpO2 0.005151 0.143904 0.036 0.9716 − 0.109567 0.095932 − 1.142 0.2567
PP − 0.035679 0.131199 − 0.272 0.7866 0.164115 0.080165 2.047 0.0438
HbA1c 0.067793 0.128064 0.529 0.5985 0.025044 0.08176 0.306 0.7601
Grip 0.055435 0.124306 0.446 0.6573 − 0.008568 0.083129 − 0.103 0.9182
D score 0.015942 0.123832 0.129 0.8980 0.229531 0.07571 3.032 0.0032
VD − 0.401727 0.127334 − 3.155 0.0025 − 0.551756 0.074537 − 7.402 < 0.0001