Each column generally represents a single variable; however, one variable may span several columns. At the most basic level, a codebook describes the layout of the data in the data file and describes what the data codes mean. Codebooks are used to document the values associated with the answer options for a given survey question. Each answer category is given a unique numeric value, and these unique numeric values are then used by ...
The fetal attitude describes the position of the parts of your baby's body. The normal fetal attitude is commonly called the fetal position. 1  The head is tucked down to the chest.  The arms and legs are drawn in towards the center of the chest.
An OP baby is in the occiput posterior position which is head down and baby is facing momâs front. The optimal position is called occiput anterior which is head down and facing towards momâs back.ll normal! With my anterior placenta pregnancy I started feeling movement at 16 weeks and my husband felt baby girl kick at 19 weeks so I donât think having an anterior placenta impacted feeling baby movement for me in this prengnacy.