Table 5 Variables associated with higher participant experience score

Clinic

 Mbekweni

47 (42–51)

Reference

 TC Newman

55 (50–58)

7.0

(6.0–8.1)

<0.001

-

-

-

Highest level of education

 Some secondary

50 (43–55)

Reference

Reference

 Completed secondary

52 (48–56)

3.1

(1.8–4.3)

<0.001

0.8

(-0.7-2.3)

0.269

Current employment status

 Unemployed

50 (45–55)

Reference

Reference

 Employed

52 (47–57)

2.3

(0.8–3.7)

0.002

0.7

(-0.8-2.1)

0.361

Composite SES quartile

 Lowest SES

48 (39–53)

Reference

Reference

 Low-moderate SES

50 (44–54)

2.5

(0.7–4.2)

0.005

1.4

(–0.2–3.0)

0.079

 Moderate-high SES

51.5 (48–55)

3.9

(2.2–5.6)

<0.001

2.3

(0.6–4.0)

0.007

 High SES

52 (48–58)

5.3

(3.6–6.9)

<0.001

2.8

(0.7–4.8)

0.009

Prior participation in research

 No prior participation in research

51 (47–56)

Reference

Reference

 Prior participation in research

45 (38–51)

-6.1

(-7.6 – -4.6)

<0.001

-5.1

(-6.6 – -3.7)

<0.001

Stressful events experienced

 Below threshold

50 (44–55)

Reference

Reference

 Above threshold¹

53 (49–57)

3.0

(1.6–4.4)

<0.001

2.3

(1.1–3.6)

<0.001

Cohort

 Main cohort

54 (49–57)

Reference

Reference

 Intensive biweekly cohort

50 (44–54)

-4.6

(-6.0 – -3.2)

<0.001

-3.0

(-4.3 – -1.7)

<0.001