The Causes of Preterm Labor Are Not Fully Understood Although

question 18

Multiple Choice

The causes of preterm labor are not fully understood although many factors have been associated with early labor.These include (select all that apply)

• A) Singleton pregnancy
• B) History of cone biopsy
• C) Smoking
• D) Short cervical length
• E) Higher level of education

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Definitions:

Log Transformation

A mathematical operation that replaces a variable with the logarithm of that variable to help normalize data or manage skewed distributions.

Arcsin Transformation

A data transformation technique used to stabilize the variance when the data follow a binomial distribution.

Categorical Variable

A variable that can take on one of a limited, and usually fixed, number of possible values, assigning each individual to a particular group or nominal category.

Quantitative Variable

A type of variable that represents measurable quantities and can be expressed in numeric values.