Table 3 Univariate and multivariate analyses of factors associated with Unplanned CS

Age

 < 20

0.407(-0.19–1.00)

0.183

NA

20–34

Ref

 >  = 35

0.094(-0.35–0.54)

0.677

Residence

Urban

Ref

Rural

0.461(0.085–0.836)

0.016

0.342(-0.11–0.79)

0.141

Marital status

Married

Ref

Single

1.116(0.224–2.007)

0.014

-1.11(-2.12–0.115)

0.069

Divorce/Widow

-1.031(-3.131–1.069)

0.336

-2.04(-4.67–0.58)

0.128

Weight of mother

Normal

Underweight

0.039(-0.503–0.581)

0.888

NA

MUAC

 >  = 24

Ref

 < 24 cm

0.051(-0.31–0.412)

0.782

NA

Anemia

No

Ref

Yes

0.14(-0.51–0.789)

0.674

NA

Gravidity

Multigravida

Ref

Ref

Primigravida

0.39(0.114–0.667)

0.006

0.265(-0.44–0.975)

0.464

Parity

Multiparous

Ref

Ref

Nulliparous

0.344(0.069–0.618)

0.014

0.762(0.025–1.498)

0.043

Comorbidity

No

Ref

Ref

Yes

0.731(-0.119–1.58)

0.092

0.507(-0.516–1.531)

0.331

Mode of previous delivery

SVD

Ref

Ref

CS

1.75(1.353–2.151)

0.000

2.824(2.327–3.321)

0.000

PIH

No

Ref

NA

Yes

0.097(-0.572–0.766)

0.776

Abruption

No

Ref

Ref

Yes

1.197(0.565–1.83)

0.000

1.277(0.516–2.038)

0.001

PROM

No

Ref

NA

Yes

0.277(-0.328–0.882)

0.369

Amount of AF

Normal

Ref

Ref

Abnormal

1.14(0.617–1.664)

0.000

0.746(0.093–1.4)

0.025

Onset of labor

Spontaneous

Ref

Ref

Induced

1.25(0.763–1.745)

0.000

0.963(0.366–1.56)

0.002

Prolonged labor

No

Ref

Ref

Yes

1.40(0.937–1.87)

0.000

1.176(0.618–1.733)

0.000

AF status

clear

Ref

Ref

Abnormal

1.81(1.41–2.21)

0.000

1.93(1.48–2.396)

0.000

Gestational age

 < 40

Ref

Ref

 >  = 40

0.534(0.250–0.817)

0.000

0.472(0.118–0.826)

0.009

Birth Weight

 < 2500

Ref

NA

2500–4000

0.070(-0.35- 0.496)

0.744

 >  = 4000

0.704(-0.42- 1.835)

0.222

Number of ANC

 >  = 4

Ref

NA

 < 4

0.177(-0.45–0.099)

0.290