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Table 2 Multivariate logistic regression analysis for complicated appendicitis (Derivation Sample: n = 382)

From: A clinical prediction model for complicated appendicitis in children younger than five years of age

Variables β SE 0R 95% CI P value
Age (years) −1.559 0.208 0.210 0.140–0.316 < 0.001
WBC (*109/L) 0.190 0.036 1.209 1.128–1.297 < 0.001
NEU (*109/L) −0.101 0.080 0.904 0.773–1.058 0.209
LYMPH (*109/L) 0.099 0.080 1.104 0.944–1.292 0.214
PCT (ug/L) 0.076 0.043 1.079 0.993–1.173 0.072
CRP (mg/L) 0.003 0.003 1.003 0.997–1.009 0.325
DS (hours) 0.010 0.004 1.010 1.002–1.018 0.015
Body temperature (°C) 0.225 0.221 1.253 0.813–1.931 0.308
Migration of pain to RLQ −0.382 0.542 0.682 0.236–1.975 0.481
Abdominal distention −0.084 0.380 0.920 0.437–1.935 0.825
Rebound pain 1.263 0.495 3.537 0.840–9.333 0.091
Nausea/ vomiting 1.002 0.633 2.724 0.788–9.417 0.113
Diarrhea 0.828 0.658 2.288 0.630–8.313 0.209
Constant 2.997 0.976 20.026 0.002
  1. β: regression coefficient; SE: standard error; OR: odds ratio; 95%CI: 95% confidence interval. WBC white blood cell count, NEUT neutrophil count, LYMPH lymphocyte count, PCT procalcitonin, CRP C-reactive protein, DS duration of symptoms, LRQ right lower quadrant