Research Article
Validity of Machine Learning in Detecting Complicated Appendicitis in a Resource-Limited Setting: Findings from Vietnam
Table 2
Characteristics of patients with complicated appendicitis and without complicated appendicitis.
| | Criteria | Total () | Complicated appendicitis | Yes
(24.8%) | No
(75.2%) | Odds ratio (95% confidence interval) |
| | Age (year) (mean, standard deviation) | | | | 1.02 (1.01 - 1.02) | | Gender (, %) | | Male | 678 (45.0) | 233 (48.2) | 652 (44.4) | 1.17 (0.95 – 1.43) | | Female | 826 (55.0) | 250 (51.8) | 815 (55.6) | Ref | | White blood cell count (WBC) (103 cell/mm3) (mean, standard deviation) | | | | 1.04 (1.01 - 1.06) | | Neutrophil (103 cell/mm3) (mean, standard deviation) | | | | 1.05 (1.02 - 1.08) | | Lymphocyte (103 cell/mm3) (mean, standard deviation) | | | | 0.61 (0.52 - 0.72) | | Neutrophil lymphocyte ratio (NLR) (median, interquartile range) | 7.0 (4.5 - 11.0) | 8.2 (5.3 - 12.5) | 6.8 (4.4 - 10.8) | 1.03 (1.01 - 1.05) | | C-reactive protein (CRP) (mg/L) (median, interquartile range) | 14.2 (4.6 – 44.6) | 39.8 (10.9 - 105.0) | 11.0 (3.8 - 28.8) | 1.02 (1.01 - 1.02) | | Diameter of appendix on ultrasound (mm) (mean, standard deviation) | | | | 1.13 (1.09 - 1.18) | | Appendix position on ultrasound (, %) | | Right lower abdominal quadrant | 1498 (76.8) | 322 (66.7) | 1176 (80.2) | 0.49 (0.39 - 0.63) | | Other positions | 452 (23.2) | 161 (33.3) | 291 (19.8) | Ref | | Infiltration on ultrasound (, %) | | Yes | 1513 (77.6) | 368 (76.2) | 1145 (78.0) | 0.90 (0.70 - 1.16) | | No | 437 (22.4) | 115 (23.8) | 322 (22.0) | Ref | | Abdominal fluid on ultrasound (, %) | | Yes | 511 (26.2) | 172 (35.6) | 339 (23.1) | 1.84 (1.46 - 2.31) | | No | 1439 (73.8) | 311 (64.4) | 1128 (76.9) | Ref |
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Odds ratio and 95% confidence interval were from traditional logistic regression. |
