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Table 2 Predictors of missing data at 12 months

From: Assessing loss to follow-up in the MObile Technology for Improved Family Planning (MOTIF) randomised controlled trial

 

Followed up (n = 328)

LTFU (n = 172)

Crude OR

p Value

Adjusted ORa

p Value

Age group

 Age > 25 years (r)

235 (69%)

108 (31%)

1.00

   

 Age < 25 years

93 (59%)

64 (41%)

1.50 (1.01–2.21)

0.043

1.59 (1.07–2.36)

0.023

Residence

 Rural (r)

212 (66%)

109 (34%)

1.00

   

 Urban

116 (65%)

63 (35%)

1.06 (0.72–1.55)

0.780

1.04 (0.70–1.54)

0.848

Socio-economic status

 Access to motorised transport (r)

294 (68%)

141 (32%)

1.00

   

 No access to motorised transport

34 (52%)

31 (48%)

1.90 (1.12–3.22)

0.017

2.04 (1.19–3.47)

0.009

Education

 Secondary or above (r)

209 (69%)

95 (31%)

1.00

   

 None or primary

119 (61%)

77 (39%)

1.42 (0.98–2.07)

0.065

1.48 (0.98–2.23)

0.060

Marital status

 Married/living together (r)

309 (67%)

155 (33%)

1.00

   

 Never married or living together

16 (55%)

13 (45%)

1.62 (0.76–3.45)

0.212

1.38 (0.64–2.99)

0.416

 Divorced/separated

3 (43%)

4 (57%)

2.66 (0.59–12.02)

0.204

1.51 (0.31–7.41)

0.613

No. of living children

 1 or more (r)

241 (68%)

112 (32%)

1.00

   

 0

87 (59%)

60 (41%)

1.48 (1.00–2.21)

0.052

1.29 (0.81–2.04)

0.280

No. of previous abortions

 0 (r)

201 (67%)

98 (33%)

1.00

   

 1 or more

127 (63%)

74 (37%)

1.20 (0.82–1.74)

0.351

1.34 (0.91–1.98)

0.136

Contraception decision-making

 Joint decision (r)

193 (67%)

97 (33%)

1.00

   

 Mainly participant

63 (66%)

33 (34%)

1.04 (0.64–1.70)

0.868

1.06 (0.65–1.74)

0.812

 Mainly husband/partner

53 (68%)

25 (32%)

0.94 (0.55–1.60)

0.816

0.99 (0.57–1.69)

0.959

Mobile phone access

 Never shares (r)

175 (68%)

84 (32%)

1.00

   

 Shares

153 (63%)

88 (37%)

1.20 (0.83–1.73)

0.337

1.25 (0.86–1.81)

0.252

Disclosure of abortion to others

 Yes (r)

134 (66%)

70 (34%)

1.00

   

 No

19 (51%)

18 (49%)

1.81 (0.89–3.68)

0.099

1.97 (0.96–4.05)

0.066

PAFP intentions

 Undecided (r)

181 (67%)

90 (33%)

1.00

   

 Yes

120 (64%)

67 (36%)

1.12 (0.76–1.66)

0.562

1.20 (0.81–1.79)

0.360

 No

27 (64%)

15 (36%)

1.12 (0.57–2.21)

0.749

1.05 (0.53–2.10)

0.886

Fertility plans

 No more/none (r)

90 (65%)

49 (35%)

1.00

   

 Have a/another child

197 (64%)

111 (36%)

1.03 (0.68–1.57)

0.872

0.87 (0.55–1.38)

0.561

 Undecided

41 (77%)

12 (23%)

0.54 (0.26–1.12)

0.096

0.51 (0.24–1.08)

0.080

Abortion method

 Medical (r)

138 (67%)

69 (33%)

1.00

   

 Surgical

190 (65%)

103 (35%)

1.08 (0.74–1.58)

0.673

1.09 (0.74–1.60)

0.651

Phone credit

 Always (r)

132 (74%)

47 (26%)

1.00

   

 Usually

75 (59%)

53 (41%)

1.98 (1.22–3.22)

0.006

1.85 (1.13–3.02)

0.014

 Sometimes

121 (63%)

72 (37%)

1.67 (1.07–2.60)

0.023

1.59 (1.01–2.51)

0.046

Friend/family contact provided

 Yes (r)

250 (65%)

132 (35%)

1.00

   

 No

78 (66%)

40 (34%)

0.97 (0.63–1.50)

0.896

1.03 (0.66–1.60)

0.897

No. of phone numbers provided

 Two or more (r)

99 (69%)

45 (31%)

1.00

   

 One

229 (64%)

127 (36%)

1.22 (0.81–1.85)

0.346

1.22 (0.80–1.85)

0.357

Randomisation

 Intervention (r)

169 (68%)

80 (32%)

1.00

   

 Control

159 (63%)

92 (37%)

1.22 (0.84–1.77)

0.287

1.25 (0.86–1.81)

0.253

  1. LTFU Loss to follow-up, PAFP Post-abortion family planning, (r): Reference category
  2. aAdjusted for age and SES. P values less than 0.05 were regarded as significant. Analyses were undertaken using STATA 13.1 software.