Sample Demographic

Mouse over boxplot for 25th, median and 75th percentile.

Do older patients tend to be hypertensive (SBP > 150)

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  50.00   65.00   73.00   70.62   77.00   84.00

Does time taken for ballon compression correlates with Bradycardia/Hypotension/Hypertension?

In this section, we tried to fit a logistic regression over the data with the probalibity of having intraoperative Bradycardia/Hypotension/Hypertension as the response(y-axis) and the balloon inflation time as the predictor. 


Call:
glm(formula = intra_op_bradycardia ~ balloon_inflation_time, 
    family = binomial, data = record)

Deviance Residuals: 
   Min      1Q  Median      3Q     Max  
-1.517  -1.176   0.851   1.071   1.290  

Coefficients:
                       Estimate Std. Error z value Pr(>|z|)
(Intercept)             -0.5182     0.8874  -0.584    0.559
balloon_inflation_time   0.2577     0.2983   0.864    0.388

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 33.104  on 23  degrees of freedom
Residual deviance: 32.327  on 22  degrees of freedom
  (14 observations deleted due to missingness)
AIC: 36.327

Number of Fisher Scoring iterations: 4


Call:
glm(formula = intra_op_hypotension ~ balloon_inflation_time, 
    family = binomial, data = record)

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-1.4323  -1.2178   0.9423   1.1375   1.2944  

Coefficients:
                       Estimate Std. Error z value Pr(>|z|)
(Intercept)              0.8255     0.8988   0.918    0.358
balloon_inflation_time  -0.2436     0.2939  -0.829    0.407

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 33.104  on 23  degrees of freedom
Residual deviance: 32.395  on 22  degrees of freedom
  (14 observations deleted due to missingness)
AIC: 36.395

Number of Fisher Scoring iterations: 4


Call:
glm(formula = intra_op_hypertension ~ balloon_inflation_time, 
    family = binomial, data = record)

Deviance Residuals: 
    Min       1Q   Median       3Q      Max  
-2.2597  -1.0310   0.6407   0.8702   1.3313  

Coefficients:
                       Estimate Std. Error z value Pr(>|z|)
(Intercept)             -0.9201     0.9548  -0.964    0.335
balloon_inflation_time   0.5654     0.3542   1.596    0.110

(Dispersion parameter for binomial family taken to be 1)

    Null deviance: 31.755  on 23  degrees of freedom
Residual deviance: 28.742  on 22  degrees of freedom
  (14 observations deleted due to missingness)
AIC: 32.742

Number of Fisher Scoring iterations: 3

We can see from the data plot, the resulting logistic regression line does not fit well with the data. The p-values of the fitted coefficients are larger than 5% which implies its non-significance. Therefore, we can conclude that balloon inflation time does not correlate to intraoperative Bradycardia/Hypotension/Hypertension

Do patients remain hypertensive after taking hydralazine?

60% of the patients remain hypertensive after taking hydralazine.

Do patients remain bradycardiac after taking atropine or glycol?

41.3793103 of patients remain bradycardiac after taking atropine or glycol