Table 5 Multivariate logistic regression analysis of factors associated with serious abdominal conditions

Sex: male

1.82 (1.12–2.96)

2.29 (1.3–4.04)

0.004

History of abdominal surgery

2.22 (1.3–3.78)

1.68 (0.9–3.15)

0.106

Associated symptoms

 Anorexia

2.79 (1.58–4.92)

2.16 (1.08–4.32)

0.03

NEWS

 5–6

5.89 (3.11–11.16)

2.96 (1.35–6.49)

0.007

 ≥ 7

15.13 (5.52–41.43)

2.16 (0.52–8.91)

0.288

ESI triage levels

 1–2

14.09 (3.29–60.34)

3.36 (0.69–16.5)

0.135

 3

3.56 (0.85–14.85)

1.66 (0.37–7.52)

0.511

Vital signs

 SBP < 100 mmHg

10.98 (3.9–30.94)

4.32 (0.96–19.36)

0.056

 SBP 100–125 mmHg

2.33 (1.3–4.16)

1.5 (0.75–2.99)

< 0.001

Abdominal signs

 Guarding

10.44 (5.63–19.35)

6.92 (3.39–14.12)

< 0.001

Investigations

 WBC 12,000–14,000 (cells/mm³)

1.5 (0.72–3.14)

1.05 (0.44–2.47)

0.915

 WBC ≥ 14,000 (cells/mm³)

2.64 (1.45–4.81)

2.08 (1.06–4.09)

0.034

EDLOS (hours)

 4–8

8.37 (4.48–15.64)

2.17 (1.08–4.36)

0.03

 ≥ 8

16.29 (6.49–40.9)

3.22 (1.15–9)

0.025