Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage
ObjectiveThis study aimed to explore the relationship between baseline bicarbonate levels and 30-day mortality in individuals with non-traumatic subarachnoid hemorrhage (SAH).MethodsPatients with non-traumatic SAH were chosen from the Medical Information Mart for Intensive Care (MIMIC)-IV database....
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-01-01
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| Series: | Frontiers in Neurology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fneur.2023.1310327/full |
| _version_ | 1797367211428413440 |
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| author | Wenyuan Du Jingmian Yang Yanfang Lou Jiahua You Qiang Wang |
| author_facet | Wenyuan Du Jingmian Yang Yanfang Lou Jiahua You Qiang Wang |
| author_sort | Wenyuan Du |
| collection | DOAJ |
| description | ObjectiveThis study aimed to explore the relationship between baseline bicarbonate levels and 30-day mortality in individuals with non-traumatic subarachnoid hemorrhage (SAH).MethodsPatients with non-traumatic SAH were chosen from the Medical Information Mart for Intensive Care (MIMIC)-IV database. The relationship between baseline bicarbonate and 30-day mortality was examined using Cox regression models. Restricted cubic splines were used to test the hypothesis that there was an association between bicarbonate and mortality. With the use of Kaplan–Meier survival curve analysis, we looked deeper into the validity of these correlations. To find subgroups with differences, interaction tests were utilized.ResultsThis retrospective cohort study consisted of 521 participants in total. Bicarbonate had a negative association with death at 30 days (HR = 0.93, 95%CI: 0.88–0.98, p = 0.004). Next, we divided bicarbonate into quartile groups. In comparison to the reference group Q1 (20 mEq/L), groups Q3 (23–25 mEq/L) and Q4 (26 mEq/L) had adjusted HR values of 0.47 (95%CI: 0.27–0.82, p = 0.007) and 0.56 (95%CI: 0.31–0.99, p = 0.047). No definite conclusions can be derived from this study, since there is no obvious curve link between baseline bicarbonate and 30-day mortality. Patients’ 30-day mortality increased statistically significantly (p < 0.001, K–M analysis) in patients with low bicarbonate levels. The relationship between bicarbonate and 30-day mortality remained consistent in the stratified analysis, with no observed interactions.ConclusionFinally, 30-day mortality was negatively associated with baseline bicarbonate levels. Patients with non-traumatic SAH are more at risk of mortality if their bicarbonate levels are low. |
| first_indexed | 2024-03-08T17:15:01Z |
| format | Article |
| id | doaj.art-9ab6a7d7824f447d9f0d513fbdedb9c5 |
| institution | Directory Open Access Journal |
| issn | 1664-2295 |
| language | English |
| last_indexed | 2024-03-08T17:15:01Z |
| publishDate | 2024-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neurology |
| spelling | doaj.art-9ab6a7d7824f447d9f0d513fbdedb9c52024-01-03T13:53:24ZengFrontiers Media S.A.Frontiers in Neurology1664-22952024-01-011410.3389/fneur.2023.13103271310327Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhageWenyuan Du0Jingmian Yang1Yanfang Lou2Jiahua You3Qiang Wang4Department of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, ChinaDepartment of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, ChinaDepartment of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, ChinaDepartment of Neurology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, ChinaDepartment of Cardiology, Shijiazhuang Traditional Chinese Medicine Hospital, Shijiazhuang, Hebei, ChinaObjectiveThis study aimed to explore the relationship between baseline bicarbonate levels and 30-day mortality in individuals with non-traumatic subarachnoid hemorrhage (SAH).MethodsPatients with non-traumatic SAH were chosen from the Medical Information Mart for Intensive Care (MIMIC)-IV database. The relationship between baseline bicarbonate and 30-day mortality was examined using Cox regression models. Restricted cubic splines were used to test the hypothesis that there was an association between bicarbonate and mortality. With the use of Kaplan–Meier survival curve analysis, we looked deeper into the validity of these correlations. To find subgroups with differences, interaction tests were utilized.ResultsThis retrospective cohort study consisted of 521 participants in total. Bicarbonate had a negative association with death at 30 days (HR = 0.93, 95%CI: 0.88–0.98, p = 0.004). Next, we divided bicarbonate into quartile groups. In comparison to the reference group Q1 (20 mEq/L), groups Q3 (23–25 mEq/L) and Q4 (26 mEq/L) had adjusted HR values of 0.47 (95%CI: 0.27–0.82, p = 0.007) and 0.56 (95%CI: 0.31–0.99, p = 0.047). No definite conclusions can be derived from this study, since there is no obvious curve link between baseline bicarbonate and 30-day mortality. Patients’ 30-day mortality increased statistically significantly (p < 0.001, K–M analysis) in patients with low bicarbonate levels. The relationship between bicarbonate and 30-day mortality remained consistent in the stratified analysis, with no observed interactions.ConclusionFinally, 30-day mortality was negatively associated with baseline bicarbonate levels. Patients with non-traumatic SAH are more at risk of mortality if their bicarbonate levels are low.https://www.frontiersin.org/articles/10.3389/fneur.2023.1310327/full30-day mortalitybicarbonatenon-traumatic subarachnoid hemorrhageIntensive Care UnitMIMIC-IV |
| spellingShingle | Wenyuan Du Jingmian Yang Yanfang Lou Jiahua You Qiang Wang Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage Frontiers in Neurology 30-day mortality bicarbonate non-traumatic subarachnoid hemorrhage Intensive Care Unit MIMIC-IV |
| title | Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage |
| title_full | Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage |
| title_fullStr | Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage |
| title_full_unstemmed | Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage |
| title_short | Relationship between baseline bicarbonate and 30-day mortality in patients with non-traumatic subarachnoid hemorrhage |
| title_sort | relationship between baseline bicarbonate and 30 day mortality in patients with non traumatic subarachnoid hemorrhage |
| topic | 30-day mortality bicarbonate non-traumatic subarachnoid hemorrhage Intensive Care Unit MIMIC-IV |
| url | https://www.frontiersin.org/articles/10.3389/fneur.2023.1310327/full |
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