Table 3

Summary table of reattendance/retest outcomes for randomised control trials

StudyOutcomes
Reattendance (number reattending/number reminded to retest)
Reattendance in intervention group
n/N (%)
Reattendance in control group
n/N (%)
Crude OR (95% CI), statistical finding*
(ITT analysis, unless otherwise stated)
Type of intervention: send home sampling kit
Gotz et al2450/109 (46%)25/107 (23%)OR 2.8 (95% CI 1.5 to 5.0)
Sparks et al2227/60 (45%)20/62 (32%)OR 1.7 (95% CI 0.8 to 3.8)
Xu et al23STI clinic recruits:
109/408 (26.7%)

Family planning recruits: 80/196 (40.8%)
STI clinic recruits:
77/403 (19.1%)

FP recruits: 43/208 (20.7%)
STI clinic group:
calc OR=1.5 (calc 95% CI 1.1 to 2.2)

FP group:
calc OR=2.6 (calc 95% CI 1.7 to 4.2)
Cook et al25/197* (82%)/191 (61.3%)N/A
Type of intervention: Phone call/letter
Malotte et al26
USA‡
Group 2 Financial incentive: /141 (13.2%)
Group 3 MI+reminder: /136 (23.9%)
Group 5 Reminder only: /27 (33%)
Group 6 MI only: /25 (12%)
Group 1: /141 (11.4%)
Group 4: /29 (3.4%)
Compared with group 1:
group 2: OR 1.2 (95% CI 0.6 to 2.4)
group 3: OR 2.5 (95% CI 1.3 to 4.8)

Crude OR not reported for group 5 versus 4 or group 6 versus 4.
After controlling for gender and STD test in the last year:
Compared with group 4:
group 5: OR 12.3 (95% CI 1.4 to 112.0)
group 6: OR 2.5 (95% CI 0.2 to 28.0)
Type of intervention: SMS
Downing et al10
SMS reminder only:
9/32 (28.1%)

SMS+financial incentive:
8/30 (26.7%)
2/32 (6.3%)SMS reminder only:
calc OR=5.9 (calc 95% CI 1.0 to 59.4)

SMS+financial incentive:
calc OR=5.4 (calc 95% CI 0.9 to 56.1)
  • *OR and 95% CI is calculated where not provided in the paper and is specified as ‘calc OR’ or ‘calc 95% CI’.

  • †In Sparks et al, retest within the 28 day window period after recall is presented as this is more likely to be associated with the recall than retests in the 100 day window period.

  • ‡Where no numerator is given in the paper, the denominator is presented for completeness.

  • FP, family planning; ITT, intention to treat; LGV: Lymphogranuloma Venereum; MI: motivational interview; STI, sexually transmitted infection.