Table 4 Sensitivity analysis

Nonsurgery vs control

Rate

26/59 (44.1) vs 39/61 (63.9)

38/59(64.4) vs 51/61(83.6)

Crude OR

0.444 (0.214–0.925)

0.030

0.355 (0.150–0.840)

0.019

Adjusted OR^a

0.451 (0.199–1.102)

0.050

0.350 (0.136–0.900)

0.04

Surgery vs control

Rate

18/42 (42.9) vs 39/61 (63.9)

31/42(73.8)vs 51/61(83.6)

Crude OR

0.423 (0.189–0.945)

0.036

0.553 (0.210–1.451)

0.229

Adjusted OR^a

0.292 (0.113–1.059)

0.043

0.563 (0.187–1.692)

0.332

Surgery vs nonsurgery

Rate

18/42 (42.9) vs 26/59 (44.1)

31/42(73.8)vs 38/59(64.4)

Crude OR

0.952 (0.428–2.115)

0.904

1.557 (0.652–3.718)

0.318

Adjusted OR^a

0.618 (0.230–1.663)

0.341

1.472 (0.481–4.500)

0.498