Task shifting in maternal and newborn care: a non-inferiority study examining delegation of antenatal counseling to lay nurse aides supported by job aids in Benin

Table 2 Difference in mean percent of messages provided during antenatal visit, by topic and provider type (per protocol)

Mean % of messages provided	Nurse-midwives	Lay Nurse Aides	Differ-ence (β)	95% CI	Inference^a
No. of pregnant women (N = 409)	206	203
Adjusted Scores^b
Mean % of messages given (total)	75.2	79.9	4.7	-1.7, 11.0	NI
Mean % of messages given (by topic^c)
Prenatal care	74.6	90.3	15.7*	7.0, 24.4	S
Birth preparedness	82.9	82.9	-0.0	-9.0, 9.1	NI
Danger signs during pregnancy	68.7	73.4	4.7	-5.1, 14.6	NI
Clean delivery	87.8	89.2	1.4	-9.4, 12.3	NI
Newborn care^d	69.0	61.7	-7.3	-23.1, 8.4	U
Mean % of communication techniques used	95.2	97.6	2.4	-0.2, 5.0	NI
Mean duration of antenatal consultation^e	29.0	31.9	2.9	-0.7, 6.4	-

[a] Non-inferiority margin (∆) = -10 where inference drawn is designated by: S = superior; NI = non-inferior; U = insufficient evidence. [b] Scores adjusted for correlation of observations; site- and provider-level characteristics (random effects); counseling mode; and patient age, education, first prenatal visit, and total number of prenatal visits (fixed effects). [c] Total number of messages by category include: prenatal care (n = 5), birth preparedness (n = 7), danger signs during pregnancy (n = 9); clean delivery (n = 2); newborn care (n = 6); communication techniques (n = 6). [d] Includes only women at 6 - 9 months of pregnancy. [e] Excludes additional time for women who participated in individual counseling following group session. * Significant at p < 0.05. Note: Upper limits of the confidence interval are not interpreted for non-inferiority analyses.

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