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Table 1 Baseline Characteristics by Intervention Group

From: Revealing a safer sex option to reduce HIV risk: a cluster-randomized trial in Botswana

 

Junior Secondary School

Primary School

Intervention

Control

Overall

n

Intervention

Control

Overall

n

Survey Data

 Female

51.6%

50.6%

51.1%

17,287

50.2%

48.8%

49.5%

10,419

 Age

14.7

14.7

14.7

16,297

12.4

12.1

12.3

9253

 Class Size

40

40

40

17,412

30

31

31

10,575

 School Size

439

426

432

17,412

88

88

88

10,575

 School Absenteeism

5.2%

6.4%

5.8%

17,412

3.9%

3.3%

3.6%

10,575

 Grade 6

90.4%

96.5%

93.6%

10,575

 Grade 8

49.5%

51.2%

50.4%

17,412

 Grade 9

48.6%

47.5%

48.1%

17,412

 Decision Factor

  wealth

6.8%

7.7%

7.3%

17,028

10.4%

9.5%

9.9%

10,094

  HIV status

14.0%

13.8%

13.9%

17,028

12.4%

15.4%

14.0%

10,094

  social status

5.7%

5.9%

5.8%

17,028

7.5%

9.1%

8.4%

10,094

  condom use

21.3%

19.4%

20.3%

17,028

34.8%

28.1%

31.2%

10,094

  faithfulness

49.8%

50.2%

50.0%

17,028

31.5%

35.5%

33.6%

10,094

 40 year-old men most likely to have HIV

9.1%

9.4%

9.3%

17,059

10.3%

10.7%

10.5%

10,153

 Older partners are riskier

45.5%

44.3%

44.9%

17,062

42.7%

43.9%

43.3%

10,201

 Self Efficacy

80.9%

81.7%

81.3%

17,412

63.0%

69.8%

66.6%

10,575

 Ever had sex

12.2%

10.7%

11.4%

17,104

12.8%

10.3%

11.4%

10,248

 Girls in class with older partners

1.39

0.81

1.08

15,916

1.21

0.36

0.73

9207

 Classmates pregnant

0.12

0.15

0.13

15,976

0.07

0.07

0.07

9400

Administrative Data from Ministry of Education

 Female Enrollment

321

285

303

17,412

269

310

291

10,575

 Male Enrollment

312

294

303

17,412

275

323

300

10,575

 Total Enrollment

634

579

605

17,412

544

633

591

10,575

 % pregnant

0.5%

0.5%

0.5%

17,412

0.0%

0.0%

0.0%

10,575