Pregnancy module

1.0 Overview 

This module determines basic pregnancy outcome information such as pregnancy duration, child sex, etc.

2.0 Module Diagram and Data 

2.1 Module Diagram 

All instructions are detailed on the MNCNH portfolio pregnancy model document. This document also contains a list of model assumptions and limitations as well as verification and validation criteria.

The inputs and outputs for this module are summarized in the tables below.

Module required inputs
Input	Source module	Application	Note
Broad pregnancy outcome	Initial attributes module	Affects pregnancy outcome (which is just a refinement of this input), gestational age
LBWSG category propensity	Initial attributes module	Used to sample exposure value from the LBWSG exposure distribution. Ordering of the LBWSG exposure categories matters when sampling. See the correlated propensities and special ordering of the categories sections of the facility choice model document.
IFA/MMS coverage	Hemoglobin module	Affects birth outcome, birthweight, and gestational age	Will need to perform baseline calibration
IV iron coverage	Hemoglobin module	Affects birth outcome, birthweight, and gestational age

Module outputs
Output	Value	Note
Pregnancy outcome	“live_birth”, “stillbirth”, or “abortion/miscarriage/ectopic”
Gestational age at end of pregnancy	point value in weeks	For live birth and stillbirth pregnancies, this is assigned based on LBWSG category, which is correlated with other model variables as described in the correlated propensities section of the facility choice model documentation.
Preterm status	“preterm” or “term”	Equals “preterm” if gestational age at end of pregnancy is < 37 weeks, “term” if gestational age at end of pregnancy is 37+ weeks. Preterm status will be used for validation of the facility choice model.
Sex of infant	“male” or “female”	N/A for pregnancies resulting in abortion/miscarriage/ectopic pregnancy
Birthweight	point value in grams	N/A for pregnancies resulting in abortion/miscarriage/ectopic pregnancy. Assigned based on LBWSG category, which is correlated with other model variables as described in the correlated propensities section of the facility choice model documentation.