Table 2 Univariable and multivariable analyses of predictive factors of complicated appendicitis

Duration of symptoms > 12 h

3.466 (1.968–6.103)

 < 0.001

2.403 (1.246–4.636)

0.009

Appendicolith

3.597 (2.251–5.747)

 < 0.001

1.855 (1.039–3.312)

0.037

Periappendiceal fat stranding

5.336 (3.280–8.579)

 < 0.001

2.850 (1.592–5.104)

 < 0.001

Periappendiceal fluid

7.122 (4.326–11.724)

 < 0.001

2.721 (1.511–4.899)

0.001

Extraluminal air

53.780 (12.747–226.908)

 < 0.001

15.407 (3.421–69.382)

 < 0.001