![]() The increased odds of MAE in the 80- to 89-year-old cohort seems to be driven by the increased rate of pneumonia and urinary tract infections in this age group compared to that of the 60- to 69-yearold cohort. The only notable disparity was that cases in the 80- to 89-year-old cohort were at increased risk of MAEs compared to cases in the 60- to 69-year-old cohort, but this findings was not evident with the other groups, including that 90+-year-old group. After controlling for patient and procedural variables, the rates of 30-day AAEs, SAEs, reoperation, readmission, and mortality were no different for any the different age categories. The novel analysis presented here was the assessment of perioperative outcomes according to age category. The above-noted similarities in the adverse outcomes presented in the current study with previously published studies serve to confirm that the current study population is in line with prior literature. used the NSQIP database to analyze outcomes in a smaller cohort of 850 patients and found a 30-day mortality rate of 1.5%. included data from 43 studies and reported a 3.2% mortality rate and Toy et al. Finally, mortality (1.9%) was also within the range reported by prior studies. who studied 2,433 patients in the NSQIP database and noted a rate of 3.6%. The reoperation rate (3.9%) was also similar to that previously reported by Choo et al. used the NSQIP database to analyze outcomes in a smaller cohort of 850 patients and found a 30-day AAE of 9.5%. queried the NIS database and calculated rates of adverse events to be 4.66% after kyphoplasty and 6.05% after vertebroplasty. included data from 121 studies and noted overall complication rates of 3.6% after kyphoplasty and 5.2% after vertebroplasty. For instance, the meta-analysis of Lee et al. For these tests, the level of significance was set at 0.006 after Bonferroni correction, as 8 potential differences between groups were being tested.ĪAE after cement augmentation procedures was noted to occur in 6.6% of the current study population and was within the ranges reported by prior studies. ![]() There was no statistically significant difference in the length of stay between the different age groups. The nonagenarian cohort also had the lowest proportion of outpatient cases (38.6%), while the 60–69 cohort had the highest proportion of outpatient cases (51.2%). The nonagenarian cohort had the highest proportion of cases with ASA physical status classifications III and above (83.3%), while the 60–69 cohort had the lowest proportion of cases with ASA physical status classification III and above (68.1%). Further, while all groups had a median ASA physical status of III, the distribution of ASA physical status classification was significantly different between age groups (p < 0.001 by Kruskal-Wallis). The age groups did significantly differ in their BMI range, with older cohorts having decreasing mean BMI (p < 0.001 by ANOVA). The age groups did not significantly differ in their gender distribution, number of operative levels, or surgical specialty. Patient characteristics are summarized in Table 1.
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