Correction: Zhang et al. Admission Serum Iron as an Independent Risk Factor for Postoperative Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage: A Propensity-Matched Analysis. Brain Sci. 2022, 12, 1183
by
,
Yi-Bin Zhang
1,2,†, 
Feng Zheng
3,†,
Lampis Stavrinou
4,
Hao-Jie Wang
1,
Wen-Jian Fan
1,
Pei-Sen Yao
1,
Yuan-Xiang Lin
1,2,
Roland Goldbrunner
5,
Shu-Fa Zheng
1,2,
Pantelis Stavrinou
5,6 and
De-Zhi Kang
1,2,7,8,9,* 1
Department of Neurosurgery, Neurosurgery Research Institute, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
2
Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou 350212, China
3
Department of Neurosurgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou 362000, China
4
2nd Department of Neurosurgery, “Attikon” University Hospital, Athens Medical School, National and Kapodistrian University, 999028 Athens, Greece
5
Department of Neurosurgery, Center for Neurosurgery, Faculty of Medicine and University Hospital, University of Cologne, 50923 Cologne, Germany
6
Department of Neurosurgery, Metropolitan Hospital, 999028 Athens, Greece
7
Fujian Provincial Clinical Research Center for Neurological Disease, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
8
Fujian Provincial Institutes of Brain Disorders and Brain Sciences, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
9
Clinical Research and Translation Center, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Brain Sci. 2022, 12(11), 1438; https://doi.org/10.3390/brainsci12111438
Submission received: 17 October 2022
/
Accepted: 19 October 2022
/
Published: 26 October 2022
(This article belongs to the Section Neurosurgery and Neuroanatomy)
We would like to submit the following corrections to our recently published paper [1].
Error in the Text
The sentence correction on Page 8 needs correction:
In the original sentence, it was:
The matched DCI group had a significantly lower SI level than the matched non–DCI group (10.91 ± 6.86 vs. 20.34 ± 8.01 μmol/L, p < 0.001) (Table 1 and Figure 2D).
The correct sentence should be:
The matched DCI group had a significantly lower SI level than the matched non–DCI group (9.00 ± 6.29 vs. 20.13 ± 8.45 μmol/L, p < 0.001) (Table 1 and Figure 2D).
Errors in Tables
In the original publication, there was one mistake in Table 1 and two mistakes in Table 3. In Table 1, the number of patients from admission to surgical treatment (≤72 h) in the Non-DCI group was 77 after PSM. In Table 3, the number of patients with WFNS grade (IV–V) was 68 in the poor outcome before PSM, and the number of patients from admission to surgical treatment (≤72 h) in the good outcome group was 66 after PSM. The corrected Table 1 and Table 3 appear below.
Table 1.
Univariate analysis of association with DCI before and after propensity-score matching.
| Before Propensity-Score Matching | After Propensity-Score Matching | |||||
|---|---|---|---|---|---|---|
| Characteristics | Non-DCI | DCI | p Value | Non-DCI | DCI | p Value |
| (n = 625) | (n = 105) | (n = 104) | (n = 104) | |||
| Age, yrs, mean ± SD | 54.72 ± 11.47 | 55.65 ± 11.42 | 0.440 | 55.34 ± 11.22 | 55.76 ± 11.42 | 0.788 |
| Gender (n, %) | 0.513 | 1.00 | ||||
| Male | 235 (37.6) | 43 (41.0) | 43 (41.3) | 43 (41.3) | ||
| Female | 390 (62.4) | 62 (59.0) | 61 (58.7) | 61 (58.7) | ||
| Smoking (n, %) | 112 (17.9) | 16 (15.2) | 0.504 | 23 (22.1) | 16 (15.4) | 0.214 |
| Alcohol (n, %) | 62 (9.9) | 8 (7.6) | 0.459 | 9 (8.7) | 8 (7.7) | 0.800 |
| Medical history | ||||||
| Hypertension (n, %) | 307 (49.1) | 75 (71.4) | <0.001 | 81 (77.9) | 74 (71.2) | 0.218 |
| Diabetes (n, %) | 68 (10.9) | 13 (12.4) | 0.650 | 15 (14.4) | 13 (12.4) | 0.685 |
| Coronary heart disease (n, %) | 19 (3.0) | 2 (1.9) | 0.520 | 6 (5.8) | 2 (1.9) | 0.149 |
| Hyperlipidemia (n, %) | 119 (19.0) | 15 (14.3) | 0.244 | 25 (24.0) | 15 (14.4) | 0.079 |
| WFNS grade | <0.001 | 0.114 | ||||
| I–III | 535 (85.6) | 73 (69.5) | 82 (78.8) | 72 (69.2) | ||
| IV–V | 90 (14.4) | 32 (30.5) | 22 (21.2) | 32 (30.8) | ||
| Modified Fisher grade | <0.001 | 0.078 | ||||
| 1–2 | 482 (77.1) | 64 (61.0) | 75 (72.1) | 63 (60.6) | ||
| 3–4 | 143 (22.9) | 41 (39.0) | 29 (27.9) | 41 (39.4) | ||
| Aneurysm characteristics (n, %) | ||||||
| Multiple aneurysms | 115 (18.4) | 23 (21.9) | 0.396 | 17 (16.3) | 23 (22.1) | 0.291 |
| Single aneurysm location | 0.206 | 0.146 | ||||
| Anterior cerebral artery | 33 (6.5) | 2 (2.4) | 7 (18.0) | 2 (2.5) | ||
| Anterior communicating ar tery | 164 (32.2) | 30 (36.6) | 32 (36.8) | 29 (35.8) | ||
| Internal carotid artery | 76 (14.9) | 8 (9.8) | 15 (17.2) | 8 (9.9) | ||
| Middle cerebral artery | 104 (20.4) | 24 (29.3) | 14 (16.1) | 24 (29.6) | ||
| Posterior communicating artery | 109 (21.4) | 16 (19.5) | 15 (17.2) | 16 (19.8) | ||
| Others | 24 (4.7) | 2 (2.4) | 4 (4.6) | 2 (2.5) | ||
| Aneurysm size (n, %) | 0.405 | 0.487 | ||||
| <5 mm | 265 (42.4) | 41 (39.0) | 47 (45.2) | 41 (39.4) | ||
| 5–15 mm | 299 (47.8) | 53 (50.5) | 48 (46.2) | 52 (50.0) | ||
| 15–25 mm | 51 (8.2) | 7 (6.7) | 8 (7.7) | 7 (6.7) | ||
| >25 mm | 10 (1.6) | 4 (3.8) | 1 (1.0) | 4 (3.8) | ||
| Surgical methods (n, %) | 0.132 | 0.059 | ||||
| Clipping | 399 (63.8) | 75 (71.4) | 61 (58.7) | 74 (71.2) | ||
| Coiling | 226 (36.2) | 30 (28.6) | 43 (41.3) | 30 (28.8) | ||
| Time from admission to surgical treatment (n, %) | 0.018 | 0.874 | ||||
| ≤72 h | 396 (63.4) | 79 (75.2) | 77 (74.0) | 78 (75.0) | ||
| >72 h | 229 (36.6) | 26 (24.8) | 27 (26.0) | 26 (25.0) | ||
| Intracranial infection (n, %) | 45 (7.2) | 15 (14.3) | 0.014 | 18 (17.3) | 14 (13.5) | 0.442 |
| Hemoglobin, g/L, mean ± SD | 128.73 ± 17.97 | 130.13 ± 18.63 | 0.475 | 134.32 ± 17.14 | 129.88 ± 18.53 | 0.074 |
| Hematocrit, %, mean ± SD | 38.19 ± 4.86 | 38.56 ± 4.88 | 0.473 | 39.47 ± 4.74 | 38.49 ± 4.85 | 0.144 |
| Serum iron, umol/L, mean ± SD | 13.11 ± 6.52 | 8.99 ± 6.26 | <0.001 | 20.13 ± 8.45 | 9.00 ± 6.29 | <0.001 |
| modified Rankin Scale (n, %) | <0.001 | <0.001 | ||||
| 0–2 | 539 (86.2) | 58 (55.2) | 94 (90.4) | 57 (54.8) | ||
| 3–6 | 86 (13.8) | 47 (44.8) | 10 (9.6) | 47 (45.2) | ||
aSAH: aneurysmal subarachnoid hemorrhage; DCI: delayed cerebral ischemia mFisher: modified Fisher; SD: standard deviation; WFNS: World Federation of Neurosurgical Societies.
Table 3.
Univariate analysis of association with outcome in aSAH before and after propensity-score matching.
Table 3.
Univariate analysis of association with outcome in aSAH before and after propensity-score matching.
| Before Propensity-Score Matching | After Propensity-Score Matching | |||||
|---|---|---|---|---|---|---|
| Characteristics | Good Outcome | Poor Outcome | p Value | Good Outcome | Poor Outcome | p Value |
| (n = 597) | (n = 133) | (n = 93) | (n = 93) | |||
| Age, yrs, mean ± SD | 54.17 ± 11.30 | 57.89 ± 11.69 | 0.001 | 56.53 ± 11.54 | 56.75 ± 11.57 | 0.894 |
| Gender (n, %) | 0.898 | 1.00 | ||||
| Male | 228 (38.2) | 50 (37.6) | 34 (36.6) | 34 (36.6) | ||
| Female | 369 (61.8) | 83 (62.4) | 59 (63.4) | 59 (63.4) | ||
| Smoking (n, %) | 110 (18.4) | 18 (10.5) | 0.180 | 20 (21.5) | 13 (14.0) | 0.179 |
| Alcohol (n, %) | 60 (10.1) | 10 (7.5) | 0.356 | 10 (10.8) | 7 (7.5) | 0.445 |
| Medical history | ||||||
| Hypertension (n, %) | 293 (49.1) | 89 (66.9) | <0.001 | 66 (71.0) | 61 (65.6) | 0.431 |
| Diabetes (n, %) | 63 (10.6) | 18 (13.5) | 0.322 | 13 (14.0) | 11 (11.8) | 0.662 |
| Coronary heart disease (n, %) | 16 (2.7) | 5 (3.8) | 0.501 | 1 (1.1) | 2 (2.2) | 0.561 |
| Hyperlipidemia (n, %) | 105 (17.6) | 29 (21.8) | 0.256 | 20 (21.5) | 23 (34.7) | 0.602 |
| WFNS grade | <0.001 | 1.00 | ||||
| I–III | 543 (90.1) | 65 (48.9) | 60 (64.5) | 60 (64.5) | ||
| IV–V | 54 (9.1) | 68 (51.1) | 33 (35.5) | 33 (35.5) | ||
| Modified Fisher grade | <0.001 | 0.305 | ||||
| 1–2 | 487 (81.6) | 59 (44.4) | 44 (47.3) | 51 (54.8) | ||
| 3–4 | 110 (18.4) | 74 (55.6) | 49 (52.7) | 42 (45.2) | ||
| Aneurysm characteristics (n, %) | ||||||
| Multiple aneurysms | 108 (18.1) | 30 (22.6) | 0.234 | 16 (17.2) | 22 (23.7) | 0.275 |
| Single aneurysm location | 0.196 | 0.648 | ||||
| Anterior cerebral artery | 28 (5.3) | 7 (6.8) | 5 (6.5) | 4 (5.6) | ||
| Anterior communicating artery | 158 (32.3) | 36 (35.0) | 27 (35.1) | 25 (35.2) | ||
| Internal carotid artery | 63 (12.9) | 21 (20.4) | 8 (10.4) | 13 (18.3) | ||
| Middle cerebral artery | 107 (21.9) | 21 (20.4) | 16 (20.8) | 16 (22.5) | ||
| Posterior communicating artery | 109 (22.3) | 16 (15.5) | 18 (23.4) | 12 (16.9) | ||
| Others | 24 (4.9) | 2 (1.9) | 3 (3.9) | 1 (1.4) | ||
| Aneurysm size (n, %) | 0.570 | 0.594 | ||||
| <5 mm | 246 (41.2) | 60 (45.1) | 37 (39.8) | 44 (47.3) | ||
| 5–15 mm | 292 (48.9) | 60 (45.1) | 50 (53.8) | 41 (44.1) | ||
| 15–25 mm | 49 (8.2) | 9 (6.8) | 4 (4.3) | 6 (6.5) | ||
| >25 mm | 10 (1.7) | 4 (3.0) | 2 (2.2) | 4 (2.2) | ||
| Surgical methods (n, %) | 0.260 | 0.117 | ||||
| Clipping | 396 (63.3) | 78 (58.6) | 68 (73.1) | 58 (62.4) | ||
| Coiling | 201 (33.7) | 55 (41.4) | 25 (26.9) | 35 (37.6) | ||
| Time from admission to surgical treatment (n, %) | 0.370 | 0.633 | ||||
| ≤72 h | 384 (64.3) | 91 (68.4) | 66 (71.0) | 63 (67.7) | ||
| >72 h | 213 (35.7) | 42 (31.6) | 27 (29.0) | 30 (32.3) | ||
| Intracranial infection (n, %) | 48 (8.0) | 12 (9.0) | 0.709 | 8 (8.6) | 7 (7.5) | 0.788 |
| Hemoglobin, g/L, mean ± SD | 128.47 ± 17.69 | 131.02 ± 19.57 | 0.168 | 130.63 ± 16.48 | 130.71 ± 19.83 | 0.978 |
| Hematocrit, %, mean ± SD | 38.12 ± 4.81 | 38.79 ± 5.05 | 0.165 | 38.44 ± 4.43 | 38.74 ± 5.00 | 0.664 |
| Serum iron, umol/L, mean ± SD | 13.40 ± 6.80 | 8.59 ± 3.96 | <0.001 | 17.32 ± 9.90 | 9.38 ± 4.00 | <0.001 |
| DCI (n, %) | 58 (9.7) | 47 (35.3) | <0.001 | 23 (24.7) | 22 (23.7) | 0.864 |
aSAH: aneurysmal subarachnoid hemorrhage; DCI: delayed cerebral ischemia mFisher: modified Fisher; SD: standard deviation; WFNS: World Federation of Neurosurgical Societies.
The authors apologize for any inconvenience caused and state that the scientific conclusions are unaffected. This correction was approved by the Academic Editor. The original publication has also been updated.
Reference
- Zhang, Y.-B.; Zheng, F.; Stavrinou, L.; Wang, H.-J.; Fan, W.-J.; Yao, P.-S.; Lin, Y.-X.; Goldbrunner, R.; Zheng, S.-F.; Stavrinou, P.; et al. Admission Serum Iron as an Independent Risk Factor for Postoperative Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage: A Propensity-Matched Analysis. Brain Sci. 2022, 12, 1183. [Google Scholar] [CrossRef] [PubMed]
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Zhang, Y.-B.; Zheng, F.; Stavrinou, L.; Wang, H.-J.; Fan, W.-J.; Yao, P.-S.; Lin, Y.-X.; Goldbrunner, R.; Zheng, S.-F.; Stavrinou, P.; et al. Correction: Zhang et al. Admission Serum Iron as an Independent Risk Factor for Postoperative Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage: A Propensity-Matched Analysis. Brain Sci. 2022, 12, 1183. Brain Sci. 2022, 12, 1438. https://doi.org/10.3390/brainsci12111438
AMA Style
Zhang Y-B, Zheng F, Stavrinou L, Wang H-J, Fan W-J, Yao P-S, Lin Y-X, Goldbrunner R, Zheng S-F, Stavrinou P, et al. Correction: Zhang et al. Admission Serum Iron as an Independent Risk Factor for Postoperative Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage: A Propensity-Matched Analysis. Brain Sci. 2022, 12, 1183. Brain Sciences. 2022; 12(11):1438. https://doi.org/10.3390/brainsci12111438
Chicago/Turabian StyleZhang, Yi-Bin, Feng Zheng, Lampis Stavrinou, Hao-Jie Wang, Wen-Jian Fan, Pei-Sen Yao, Yuan-Xiang Lin, Roland Goldbrunner, Shu-Fa Zheng, Pantelis Stavrinou, and et al. 2022. "Correction: Zhang et al. Admission Serum Iron as an Independent Risk Factor for Postoperative Delayed Cerebral Ischemia Following Aneurysmal Subarachnoid Hemorrhage: A Propensity-Matched Analysis. Brain Sci. 2022, 12, 1183" Brain Sciences 12, no. 11: 1438. https://doi.org/10.3390/brainsci12111438
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