Table 3 Adjusted Marginal Probabilities (AMP) of successful obstetric fistula repair outcome for the associations in the fully adjusted model

Socio-demographic factors

Fistula Factors continue

Age group

Previous fistula repair

 < 20

0.86 (0.79, 0.94)

No

0.89 (0.87, 0.91)

20–34

0.89 (0.87, 0.92)

Yes

0.83 (0.78, 0.88)

 ≥ 35

0.86 (0.83. 0.89)

Years lived with fistula

Married

 < 1 year

0.91 (0.87, 0.94)

Not married

0.87 (0.83, 0.90)

1–5 years

0.86 (0.83, 0.89)

Married

0.89 (0.87, 0.91)

 > 5 years

0.87 (0.85, 0.90)

Unknown

0.84 (0.78, 0.90)

Surgery type

Parity level

Others

0.95 (0.90, 1.01)

0

0.75 (0.50, 0.99)

VVF repairs

0.86 (0.82, 0.90)

1–3

0.87 (0.85, 0.89)

Healthcare Factors

 ≥ 4

0.89 (0.86, 0.92)

Hospital of care

Province

Monze Mission & Chilenje Level 1

0.88 (0.81, 0.95)

Central & Lusaka

0.91 (0.88, 0.95)

Kabwe Central & Solwezi General

0.84 (0.65, 1.03)

Copperbelt & N/Western

0.96 (0.91, 1.00)

Northern region hospitals (Mansa, Mbala & Chilonga)

0.87 (0.85, 0.90)

Eastern

0.87 (0.80, 0.93)

St. Francis Mission

0.90 (0.85, 0.95)

Luapula

0.86 (0.82, 0.90)

Unknown

0.76 (0.55, 0.96)

Northern & Muchinga

0.85 (0.82, 0.88)

Surgery difficulty

Southern & Western

0.96 (0.90, 1.03)

Simple

0.95 (0.93, 0.98)

Unknown

0.89 (0.82, 0.97)

Intermediate

0.90 (0.87, 0.92)

Fistula Factors

Difficult

0.74 (0.68, 0.80)

Fistula type

Post-complication

Rectovaginal Fistula (RVF) or both (RVF + VVF)

0.80 (0.61, 0.99)

None

0.88 (0.86, 0.90)

Vesicovaginal (VVF)

0.88 (86, 0.90)

Yes

0.84 (0.76, 0.92)

Fistula classification

Type I

0.89 (0.86, 0.92)

Type II A(a)

0.90 (0.87, 0.94)

Type II A(b)

0.84 (0.76, 0.92)

Type II B(a)

0.84 (0.80, 0.89)

Type II B(b)

0.85 (0.78, 0.92)

Type III

0.88 (0.83, 0.92)