Table 3.
Predictor variables included in the logistic regression model for study site delivery and follow-up visit
| Parameter estimate | Odds ratio (95% CI) | p-value | |
|---|---|---|---|
| Factors influencing delivery at the study site (full analysis set) | |||
| Country of study site | |||
| Dominican Republic vs South Africa | −0.61 | 1.15 (0.87, 1.52) | <0.0001 |
| Mozambique vs South Africa | 1.19 | 6.96 (4.14, 11.69) | <0.0001 |
| Panama vs South Africa | 0.17 | 2.50 (1.93, 3.23) | 0.1391 |
| Age of the pregnant women | 0.02 | 1.02 (1.01, 1.04) | 0.0008 |
| Gestational age | 0.01 | 1.01 (1.01, 1.01) | <0.0001 |
| Mode of transportation | |||
| Minibus/Taxi - Visit 1 (Yes vs No) | 0.11 | 1.26 (1.05, 1.50) | 0.0123 |
| Public transportation - Visit 2 (Yes vs No) | 0.16 | 1.39 (1.07, 1.80) | 0.0124 |
| Walk - Visit 2 (Yes vs No) | 0.47 | 2.56 (1.62, 4.04) | <0.0001 |
| Ambulance - Visit 2 (Yes vs No) | −0.73 | 0.23 (0.18, 0.30) | <0.0001 |
| Duration of transportation to study site (Visit 1) | |||
| < 15 min vs 15–29 min | −0.35 | 0.73 (0.58, 0.92) | 0.0131 |
| 30–44 min vs 15–29 min | −0.06 | 0.98 (0.79, 1.21) | 0.6716 |
| 45–59 min vs 15–29 min | 0.33 | 1.43 (1.03, 1.99) | 0.0477 |
| 60–89 min vs 15–29 min | 0.19 | 1.26 (0.88, 1.80) | 0.2515 |
| 90–120 min vs 15–29 min | −0.11 | 0.93 (0.50, 1.73) | 0.6957 |
| > 120 min vs 15–29 min | 0.03 | 1.06 (0.31, 3.66) | 0.9592 |
| Duration of transportation to study site (Visit 2) | |||
| < 15 min vs 15–29 min | 0.70 | 1.52 (1.15, 2.02) | <0.0001 |
| 30–44 min vs 15–29 min | −0.42 | 0.50 (0.41, 0.61) | 0.0007 |
| 45–59 min vs 15–29 min | −0.09 | 0.69 (0.52, 0.93) | 0.5444 |
| 60–89 min vs 15–29 min | 0.04 | 0.79 (0.56, 1.12) | 0.8159 |
| 90–120 min vs 15–29 min | 0.23 | 0.96 (0.50, 1.85) | 0.4259 |
| > 120 min vs 15–29 min | −0.74 | 0.36 (0.11, 1.18) | 0.1507 |
| Cost of transportation to study site (Visit 1) | 0.08 | 1.09 (1.02, 1.16) | 0.0133 |
| Factors influencing return to the study site for follow-up visit (full analysis set with live-born infants) | |||
| Country of study | |||
| Dominican Republic vs South Africa | 2.40 | 19.20 (10.16, 36.27) | <0.0001 |
| Mozambique vs South Africa | −1.32 | 0.46 (0.32, 0.67) | <0.0001 |
| Panama vs South Africa | −0.52 | 1.03 (0.82, 1.29) | <0.0001 |
| Mode of transportation to study site | |||
| Walk - Visit 2 (Yes vs No) | 0.31 | 1.85 (1.21, 2.81) | 0.0042 |
| Cost of transportation to study site at Visit 2 | −0.01 | 0.99 (0.97, 1.00) | 0.0257 |
| Alternative Childcare at Visit 1 | |||
| Alternative care available vs No other children | 0.21 | 1.35 (1.14, 1.60) | 0.1115 |
CI confidence intervals, Visit 1 enrolment, Visit 2 delivery