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Table 6 Multivariable logistic regression results of impact of intervention on six-week service uptake outcomes

From: Randomized evaluation and cost-effectiveness of HIV and sexual and reproductive health service referral and linkage models in Zambia

  Uptake of HTC Uptake of FP Uptake of VMMC Uptake of CCS Uptake of HIV C&T Uptake of STI C&T
  OR CI Sign. OR CI Sign. OR CI Sign. OR CI Sign. OR CI Sign. OR CI Sign.
Model 1: Study arm
 Study arm
  Standard of care 1    1    1    1    1    1   
  Enhanced referral 1.34 0.85–2.10   1.32 0.84–2.07   1.97 1.09–3.58 * 6.22 3.95–9.80 *** 1.11 0.83–1.50   1.22 0.80–1.86  
  Enhanced referral & escort 1.75 1.13–2.71 * 0.65 0.39–1.10   2.82 1.60–4.98 *** 7.50 4.77–11.78 *** 1.28 0.96–1.71 1.11 0.72–1.71  
  N 875    791    1110    1713    3254    3258   
  Chi-square 6.41   * 7.96   * 14.13   *** 118.79   *** 2.95    0.89   
  Degrees of freedom 2    2    2    2    2    2   
Model 2: Study Arm + Site + Demographic Covariates
 Study Arm AOR CI Sign. AOR CI sign. AOR CI Sign. AOR CI Sign. AOR CI Sign. AOR CI Sign.
  Standard of care 1    1    1    1    1    1   
  Enhanced referral 1.34 0.85–2.11   1.33 0.84–2.12   2.05 1.11–3.79 * 6.60 4.17–10.45 *** 1.16 0.85–1.58   1.28 0.84–1.96  
  Enhanced referral & escort 1.73 1.11–2.69 * 0.62 0.36–1.05 2.99 1.66–5.36 *** 7.75 4.91–12.23 *** 1.30 0.96–1.75 1.14 0.73–1.76  
 Entry Sitea                   
  SFH HTC - Cairo Road     1    1    1    1    1   
  Chawama Clinic - MCH 1          0.93 0.48–1.80   0.46 0.23–0.92 * 1.80 0.63–5.17  
  Chawama Clinic - Out Patient Ward (VMMC)              0.75 0.32–1.75   1.53 0.50–4.70  
  Kamwala Clinic - TB, STI & HIV Clinic     0.83 0.38–1.80   0.30 0.06–1.40   0.76 0.34–1.71   1.87 1.06–3.28 * 3.38 1.37–8.35 **
  Kapata Urban Clinic, MCH 1.31 0.87–1.96         1.70 0.93–3.09 1.02 0.58–1.81   1.92 0.73–5.08  
  Kapata Urban Clinic, TB, STI & HIV     1.04 0.53–2.04   1.59 0.71–3.53   2.18 1.19–3.97 * 0.64 0.37–1.12   1.88 0.79–4.45  
  Chipata Gen Hosp - OP VMMC              1.03 0.43–2.45   1.29 0.39–4.27  
  SFH New Start     1.06 0.53–2.12   3.41 1.62–7.19 ** 0.83 0.42–1.63   2.75 1.68–4.51 *** 4.00 1.77–9.05 ***
  SFH VMMC              1.37 0.45–4.18   1.34 0.27–6.71  
 Genderb
  Male              1    1   
  Female              1.70 1.22–2.36 ** 0.78 0.49–1.25  
 Age 1.00 0.95–1.04   0.97 0.93–1.02   1.01 0.96–1.06   1.00 0.97–1.04   1.05 1.03–1.08 *** 1.03 0.99–1.06  
 Highest grade completed 1.00 0.94–1.06   0.97 0.91–1.04   0.99 0.91–1.08   1.00 0.96–1.05   0.93 0.89–0.96 *** 1.02 0.96–1.08  
 Marital Status                   
  Not currently married 1    1    1    1    1    1   
  Currently married/living with partner 0.85 0.53–1.34   2.57 1.61–4.08 *** 1.26 0.63–2.52   1.28 0.91–1.78   0.94 0.70–1.26   0.73 0.48–1.12  
 Number of children 1.00 0.84–1.18   1.10 0.93–1.30   0.91 0.73–1.14   1.00 0.89–1.12   1.02 0.93–1.12   1.07 0.93–1.23  
 Residence                   
  Urban 1    1    1    1    1    1   
  Rural 0.53 0.20–1.42   1.66 0.63–4.36   1.02 0.33–3.15   1.10 0.57–2.10   0.93 0.54–1.60   1.01 0.47–2.19  
 Employment status                   
  Not working 1    1    1    1    1    1   
  Currently working 1.38 0.94–2.03   1.13 0.75–1.72   0.58 0.35–0.96 * 1.38 1.04–1.83 * 1.19 0.91–1.54   1.04 0.71–1.51  
 Number of household assets 0.94 0.86–1.03   1.08 0.97–1.20   1.18 1.05–1.33 ** 0.93 0.87–1.00 * 0.98 0.92–1.05   0.91 0.83–0.99 *
 Distance to health facilityc 1.00 0.91–1.10   0.99 0.94–1.04   1.02 0.98–1.06   0.99 0.94–1.04   0.98 0.94–1.02   1.00 0.97–1.04  
  N 865    783    1092    1695    3218    3222   
  Chi-Square 15.70    36.68   *** 56.89   *** 172.07   *** 199.87   *** 46.67   ***
  Degrees of Freedom 12    14    14    16    20    20   
  1. OR odds ratio, AOR adjusted odds ratio, CI 95 % confidence interval, Sign statistical significance of p-value
  2. ***p < .001; **p < .01; *p < .05; †p < .10
  3. aEntry sites included in model dependent on outcome variable
  4. bGender of outcome variable constant if omitted from model
  5. c38 % of baseline sample don’t know distance, therefore a dummy was also included (1 = Yes if don’t know distance)