Table 2 Hazard ratios (95% confidence intervals) of risk factors associated with 5-year surgical complications after midurethral sling surgery.

From: Risk factors for 5-year complications after midurethral sling surgery for stress urinary incontinence: a retrospective cohort study from Taiwan

Characteristic

Available N

No. of events

HR (95% CI)

Crude model

Full modela

Age (year)

1961

93

1.034 (1.018, 1.050)*

1.016 (0.994, 1.040)

Diabetes mellitus

    

No

1783

80

Ref

Ref

Yes

178

13

1.642 (0.917, 2.942)

1.516 (0.756, 3.040)

Surgical duration (h)

1961

93

1.114 (0.985, 1.261)

1.070 (0.901, 1.271)

Menopause syndrome diagnosis

    

No

1767

78

Ref

Ref

Yes

194

15

1.779 (1.025, 3.088)*

1.335 (0.673, 2.650)

Hormone replacement therapy

    

No

1676

63

Ref

Ref

Yes

285

30

2.929 (1.895, 4.527)*

1.787 (1.011, 3.158)*

Average flow rate (ml/s)

1846

90

0.904 (0.846, 0.965)*

0.964 (0.892, 1.042)

TVT-O sling type

    

TOT

620

19

Ref

Ref

TVT-O

1138

55

1.596 (0.949, 2.686)

1.292 (0.716, 2.331)

  1. CI, confidence interval; HR, hazard ratio; TOT, transobturator tape; TVT-O, tension-free vaginal tape-obturator.
  2. aFull model: adjusted for age, diabetes mellitus, surgical duration, menopause syndrome diagnosis, hormone replacement therapy, average flow rate and TVT-O sling type (n = 1653).
  3. *Statistically significant.
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