Fig. 3.
The changes of predicted probabilities of neurologic deficits and Euro Quality of life-5 domain-5 level score and Euro Quality of life-5 domain-5 level score health state index value at postoperative 3 months over the study period. (Top) The 3-month postoperative margins plot of the predicted probabilities with 95% CI of neurologic deficits at across the study period. The 3-month postoperative predicted probabilities of neurologic deficits at days 100, 200, and 300 since the study commenced were 0.27, 0.18, and 0.11, respectively. (Bottom) The 3-month postoperative linear prediction plot with 95% CI of the Euro Quality of life-5 domain-5 level score health state index value across the study period. The 3-month postoperative Euro Quality of life-5 domain-5 level health state index value of patients improves over the study period (β = 0.0002 [95% CI, 0.00003 to 0.0005]; P = 0.022). This corresponds to an improvement of Euro Quality of life-5 domain health state index value of 0.02 per 100 days since the study commenced.