Table 2 Variables used to understand the associations between SP interventions and stillbirths between April and November 2015 (n = 9453)

Stillbirth

1 = Stillbirth

A stillbirth was defined as an infant born at least 8 months or more of estimated gestational age, who showed no signs of life at birth

0 = Live birth

Births that occurred before 8 months gestation were coded as missing (miscarriage/abortion)

SPFREQ

0,1,2, 3+ doses of SP

Intervention

1 = DANGE SHUNI, Goronyo or Silame LGA, where community based SP distribution occurred

0 = Yabo

Any ANC

1 = Yes

0 = No

Primi

1 = Primigravida

n = 9438

2 = Multi

Place of delivery

1 = Health facility (hospital, health center/post)

0 = Home

Month of birth

1 = July–November

Month of birth

0 = May, June