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Table 4 Results of binary logistic regression analyses on ever been pregnant (dependent variable) with socio-demographics and risk behaviours (independent variables) from adolescent girls who ever had sex (N = 5060)

From: Teenage pregnancy rates and associations with other health risk behaviours: a three-wave cross-sectional study among South African school-going adolescents

 

Have you ever been pregnant

Variables

N

OR

95 % CI

Demographic characteristics

   

 Race

   

  Black African (Reference)

3261

  

  Coloured

408

1.047

0.762–1.439

  Indian

30

0.649

0.219–1.917

  White*

201

0.374

0.203–0.691

  Other

30

1.676

0.738–3.810

 Age (in years)

   

   ≤ 13 (Reference)

58

  

  14

130

0.891

0.416–1.909

  15

258

0.748

0.371–1.507

  16

352

0.675

0.340–1.341

  17

361

0.619

0.311–1.232

   ≥ 18

2771

0.724

0.384–1.367

Socio-economic status

   

 Does your father have a paying job

   

  Yes, works 5 or more days a week (Reference)

1383

  

  Yes, works less than 5 days a week

292

0.907

0.641–1.283

  No, he gets a social grant

479

1.019

0.768–1.352

  No, he is unemployed*

354

1.430

1.061–1.928

  No, he is ill or disabled

113

1.483

0.922–2.384

  No, he has retired

423

0.807

0.594–1.097

  My father is deceased*

498

1.451

1.112–1.893

  I don’t know

388

1.119

0.814–1.537

 Does your mom have a paying job

   

  Yes, works 5 or more days a week (Reference)

1200

  

  Yes, works less than 5 days a week

443

1.007

0.747–1.358

  No, she gets a social grant

690

1.195

0.929–1.537

  No, she is a housewife

914

0.962

0.757–1.222

  No, she is ill or disabled

82

1.132

0.641–1.999

  No, she has retired

90

1.218

0.711–2.089

  My mother is deceased

289

1.134

0.811–1.586

  I don’t know*

222

1.484

1.018–2.163

Sexual activity and related behaviours

   

 First sex at age ≤ 13

267

1.299

0.812–2.078

 Number of sexual partners

   

  1 person (Reference)

2599

  

  2 or more persons*

1331

1.250

1.039–1.503

Ever use alcohol before sex*

407

1.373

1.004–1.878

 Condom use

   

  Rarely (Reference)

1195

  

  Mostly*

2735

0.790

0.649–0.962

 Contraceptive methods

   

  No method (Reference)

570

  

  Birth control pills

160

1.004

0.618–1.762

  Condoms*

1697

0.462

0.309–0.691

  Injection

557

1.142

0.747–1.746

  Other*

341

0.602

0.370–0.978

Violence

   

 Ever been hit by your boyfriend

950

1.204

0.975–1.488

 Ever hit your boyfriend

693

1.247

0.987–1.575

 Ever forced to have sex

655

0.974

0.768–1.235

 Ever forced someone to have sex

287

1.165

0.845–1.607

Psychological well-being

   

 Ever had serious sad and hopeless feelings

1349

1.075

0.898–1.287

 Suicidal

1086

0.938

0.808–1.196

Smoking and substance use related behaviours

   

 Smoked cigarettes*

869

0.641

0.497–0.825

 Alcohol use

2451

0.871

0.718–1.057

 Binge drinking*

1331

0.624

0.503–0.774

 Marijuana

466

1.315

0.970–1.782

 Sniffed glue,

329

0.979

0.711–1.348

 Mandrax*

135

1.968

1.243–3.117

 Cocaine

123

1.549

0.935–2.566

 Heroin

211

1.021

0.696–1.499

 Injection

154

1.176

0.764–1.808

 Other

150

0.839

0.510–1.380

  1. *Bold means the variable is significant, p < 0.05