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Table 6 Estimated coefficients and standard errors for hazards models of contraceptive switch in 2011. The results for a standard model and a multiprocess model, modelling method choice and discontinuation conjointly, are compared. In the multiprocess model, IUD/Implants are not considered due to the limitations of the aML software and only the results of the hazard model part are shown

From: Side effects and the need for secrecy: characterising discontinuation of modern contraception and its causes in Ethiopia using mixed methods

Switch 2011

Standard model

Multiprocess model

Variable

Coefficient

SE

Coefficient

SE

Constant

9.81

−6.22

Duration (month)

 0–12

−0.189

−0.19

 12–24

0.255

0.25

 24+

0.011

0.01

Method

 Pill

0

0

 IUD/Implants

0.399

0.412

–

–

 Injectables

−0.436

0.249

−0.530***

0.154

 Condoms

−0.646***

0.155

−1.792***

0.349

Education

 No Education

0

0

 Primary

−0.670

0.346

−0.118

0.186

 Secondary+

−0.072

0.166

0.440**

0.198

Age at start

  < 25 years

0

0

 25–34 years

0.356

0.178

−0.256

0.230

 35–49 years

−0.379

0.243

−0.517**

0.235

Wealth

 Low

0

0

 Medium

−0.642**

0.251

−0.041

0.280

 High

−0.016

0.311

0.336

0.229

Area

 Urban

0

0

 Rural

0356

0.305

0.156

0.177

Religion

 Orthodox

0

0

 Muslim

0.235

0.162

0.029

0.170

 Other

0.047

0.152

0.086

0.123

Woman level effects

 Sigma

1.029**

0.39

0.938***

0.095

 Rho (switch/injectable)

–

–

0.083

0.079

 Rho (switch/condom)

–

–

0.167

0.114

 Rho (injectable/condom)

–

–

−0.103***

0.035

  1. Italics depict fixed parameters, estimated previously using a simple model with no variables. Bold depicts significance: *P < 0.05, **P < 0.01, ***P < 0.001