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Table 2 The predictive values of hypertension and hyperthymic affective temperament score on serum BDNF level in different models evaluated with linear regression analysis in the whole study population (n = 183)

From: Hyperthymic affective temperament and hypertension are independent determinants of serum brain-derived neurotrophic factor level

Models Beta Std. Error Std. Beta p R2
Model 1      0.036
 Hypertension 4149.6 1681.8 0.190 0.015  
Model 2      0.050
 Hyp. temp. score 410.7 140 0.225 0.004  
Model 3      
 Hypertension + hyp. temp. score      0.089
 Hypertension 4310.3 1640.6 0.198 0.009  
 Hyp. temp. score 422.2 137.6 0.231 0.003  
Model 4: Model 3 + age + sex      0.107
 Hypertension 4365.1 1636.7 0.200 0.008  
 Hyp. temp. score 449.8 138.1 0.246 >0.001  
Model 5: Model 4 + diabetes      0.132
 Hypertension 5161.4 1661.2 0.237 0.002  
 Hyp. temp. score 459.4 136.6 0.251 >0.001  
Model 6: Model 5 + cholesterol + HDL      0.158
 Hypertension 5954.7 1685.5 0.273 >0.001  
 Hyp. temp. score 430.6 136.8 0.235 0.002  
Model 7: Model 6 + platelet number      0.176
 Hypertension 5540 1688.4 0.254 >0.001  
 Hyp. temp. score 431.9 135.8 0.236 0.002  
Model 8: Model 7 + BDI + HAM-A + Alp.      0.191
 Hypertension 6167 1748.4 0.283 >0.001  
 Hyp. temp. score 408 140.9 0.223 0.004  
Model 9: Model 8 + PPamp.      0.202
 Hypertension 6121.2 1742.3 0.281 >0.001  
 Hyp. temp. score 405.8 140.4 0.222 0.004  
  1. Hyp. temp. score hyperthymic affective temperament score, BDI Beck depression inventory, HAM-A Hamilton anxiety scale, Alp patients regularly using alprazolam, PPamp pulse pressure amplification