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Table 6 Predictors of high antenatal care score - per protocol analysis

From: PRENACEL – a mHealth messaging system to complement antenatal care: a cluster randomized trial

Predictor

ANCS <42 points

ANCS ≥42 points

Crude RR (95% CI)

Adjusted RR (95% CI)

Group - PP

 Control

88 (20%)

352 (80%)

1

1

 PRENACEL

7 (6%)

109 (94%)

1.14 (1.06–1.22)

1.12 (1.05–1.21)

Marital status

 Living with a partner

77 (16.3%)

394 (83.7%)

1

1

 Not living with a partner

54 (71.1%)

22 (28.9%)

0.93 (0.89–0.98)

0.92 (0.85–1.00)

Socioeconomic class

 Upper/Upper Middle

9 (15.8%)

48 (84.2%)

1

1

 Middle

27 (9.2%)

265 (90.8%)

0.95 (0.89–1.02)

0.96 (0.87–1.07)

 Lower

18 (17.3%)

86 (82.7%)

1.01 (0.95–1.08)

1.06 (0.97–1.16)

Drug use

 Yes

2 (11.8%)

15 (88.2%)

1

1

 No

66 (13.5%)

424 (86.5%)

1.14 (1.01–1.29)

0.98 (0.82–1.16)

Pregnancy intentions

 Planned pregnancy

23 (10.6%)

195 (89.4%)

1

1

 Unplanned pregnancy

44 (15.8%)

234 (84.2%)

0.93 (0.89–0.96)

0.98 (0.92–1.04)

  1. ANCS antenatal care score; Per protocol (PP) analysis: Compared PRENACEL group (only includes pregnant women who received and accessed PRENACEL SMS) with control group; RR Relative risk, CI Confidence interval