In regard to Figure 3(b), observe that a set of switches controlled by binary variables and drive the connection/disconnection of systematic and parity variable nodes from the MAC subgraph.
In extending to a greater number of fadings, F>4, the general structure presented is maintained, with the information variable nodes for each fading possessing root-check identity matrices connecting to parity variable nodes in each of the other fading blocks only, ensuring the upper and lower triangular sections of parity bits observed in (14).
The parity variable is categorized into: 0, 1, ≥2 births.
As a result, the "completed parity" variable missed a small number of births.
Testing the proportional hazards assumptions revealed a slight misfit for the parity variable.
Other covariates such as dietary (consumption of proteins, lipids, carbohydrates, red meat, processed meat, tea, coffee, fiber, and magnesium), or parity variables (in women), had no significant influence on risk estimates and were not included in the final models.
We also tested for interactions with maternal age and height (continuous variables), parity (binary variable; 0 = primiparous, 1 = at least one previous delivery), and newborn sex (binary variable).
We made adjustments for potential confounders, where appropriate, including parity (continuous variable) and current BMI (continuous variable).
For body mass index, pack-years of tobacco use, frequency of alcohol intake and parity, categorical variables were entered as continuous variables 0, 1, 2 to determine standardized β-coefficients.
Associations between markers of thyroid function and BMI (dependent variables) and the selected elements, age, and parity (independent variables) were first analyzed with univariate linear regression analysis.
The variables tested were: maternal age (in years; continuous variable), parity 1, parity ≥ 4 (with parity 2 3 as reference), maternal smoking (yes/no), maternal BMI (in kg/m; continuous), maternal height (in cm; continuous), and glucose levels (in mmol/L; continuous).
