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Table 3 Proportions and odds ratios of good retention by study arm and socio-demographic characteristics

From: A randomized trial to assess retention rates using mobile phone reminders versus physical contact tracing in a potential HIV vaccine efficacy population of fishing communities around Lake Victoria, Uganda

 

All follow up visits

Good retention (5/6 of 6 visits) n (%)

Odd Ratios (95% CI)

Yes

No

Unadjusted

Adjusted

All participants

495 (74.9)

166 (25.1)

Study arm

 Phone tracing

235 (71.2)

95 (28.8)

1 (reference)

1

 Physical tracing

260 (78.5)

71 (21.4)

1.48 (1.04–2.11)

1.56 (1.08–2.26)

Sex

 Male

295 (73.2)

108 (26.8)

1

1

 Female

200 (77.5)

58 (22.5)

1.26 (0.87–1.82)

1.70 (0.99–2.91)ϕ

Age (years)

 15–19

31 (63.3)

18 (36.7)

1

1

 20–24

134 (76.6)

41 (23.4)

1.90 (0.96–3.74)

1.99 (0.98–4.04)ϕ

 25–34

238 (74.4)

82 (25.6)

1.68 (0.89–3.17)

1.54 (0.78–3.04)

 35–49

92 (78.6)

25 (21.4)

2.14 (1.03–4.43)

1.67 (0.76–3.67)

Education

 None

25 (73.5)

9 (26.5)

1

1

 Primary

284 (74.9)

95 (25.1)

1.08 (0.48–2.39)

1.19 (0.52–2.75)

 Secondary and beyond

173 (75.2)

57 (24.8)

1.08 (0.48–2.44)

1.31 (0.55–3.10)

Occupation

 Fishing/Fishing relateda

204 (75.6)

66 (24.4)

1

1

 Shop/Market

35 (76.1)

11 (23.9)

1.03 (0.49–2.14)

0.75 (0.32–1.75)

 Bar/Lodge/Hotel

49 (70.0)

21 (30.0)

0.75 (0.42–1.35)

0.60 (0.28–1.27)

 Farming

61 (83.6)

21 (16.4)

1.64 (0.83–3.24)

1.29 (0.63–2.66)

 Housewife

50 (75.8)

16 (14.2)

1.01 (0.54–1.89)

0.76 (0.33–1.72)

 Othersb

96 (70.6)

40 (29.4)

0.78 (0.49–1.23)

0.76 (0.47–1.24)

Community location

 Mainland

251 (71.1)

102 (28.9)

1

1

 Island

244 (79.2)

64 (20.8)

1.55 (1.08–2.22)

1.62 (1.08–2.43)

Duration of stay (years)

 Less than 1

51 (60.0)

34 (40.0)

1

1

 – 4

188 (72.6)

71 (27.4)

1.76 (1.06–2.95)

1.70 (0.99–2.92)ϕ

 – 10

155 (80.7)

37 (19.3)

2.79 (1.59–4.90)

2.88 (1.58–5.28)

 More than 10

101 (80.8)

24 (19.2)

2.80 (1.51–5.22)

3.46 (1.78–6.73)

Marital status

 Not married

152 (72.7)

57 (27.3)

1

1

 Married monogamous

246 (75.7)

79 (24.3)

1.17 (0.78–1.73)

0.93 (0.59–1.44)

 Married polygamous

97 (76.4)

30 (23.6)

1.21 (0.73–2.02)

0.88 (0.49–1.55)

  1. Statistically significant at p < 0.05, ϕBorderline statistical significance 0.06<p > 0.05, aFishing, fishmongers, fish processing, boat maker/owner, bConstruction/Mechanic/Government/Clerical