Questions pertain to the following table (Table 8), which presents fictitious results regarding selected risk factors for perineal dermatitis among elderly residents of a nursing home.
$\begin{array}{c}
\text { Table } 8\
\text { Risk Factors for Perineal Dermatitis (PD) in Nursing Home Residents }(N=10,000)\
\begin{array}{r}
{\text { Odds Ratio }} \quad\quad\quad\
\begin{array}{|l|c|c|c|c|c|c|}

\hline \text { Risk F actor } & \begin{array}{c}
\text { Residents } \
\text { with PD } \
(\%) \
(n=700)
\end{array} & \begin{array}{c}
\text { Residents } \
\text { without PD } \
(\%) \
(n=9300)
\end{array} & \begin{array}{c}
\text { Test } \
\text { Value }
\end{array} & p & \text { OR } & 95 \% \text { CI } \

\hline \text { Perfusion problems } & 35.0 \% & 30.0 \% & 7.92 & .008 & 1.09 & 1.04-1.37 \
\hline \text { Oxygenation problems } & 25.0 \% & 18.4 \% & 17.6 &

Question

Questions pertain to the following table (Table 8), which presents fictitious results regarding selected risk factors for perineal dermatitis among elderly residents of a nursing home.
 $\begin{array}{c}
\text { Table } 8\
\text { Risk Factors for Perineal Dermatitis (PD) in Nursing Home Residents }(N=10,000)\
\begin{array}{r}
{\text { Odds Ratio }} \quad\quad\quad\
\begin{array}{|l|c|c|c|c|c|c|}

\hline \text { Risk F actor } & \begin{array}{c}
\text { Residents } \
\text { with PD } \
(\%) \
(n=700)
\end{array} & \begin{array}{c}
\text { Residents } \
\text { without PD } \
(\%) \
(n=9300)
\end{array} & \begin{array}{c}
\text { Test } \
\text { Value }
\end{array} &  p & \text { OR } & 95 \% \text { CI } \

\hline \text { Perfusion problems } & 35.0 \% & 30.0 \% & 7.92 & .008 & 1.09 & 1.04-1.37 \
\hline \text { Oxygenation problems } & 25.0 \% & 18.4 \% & 17.6 & <.001 & 1.18 & 1.05-1.43 \
\hline \text { Fever } & 6.2 \% & 3.5 \% & 12.4 & <.001 & 1.41 & 1.10-1.79 \
\hline \text { Urinary incontinence } & 12.0 \% & 10.0 \% & 2.48 & ? & .81 & 0.70-1.17 \
\hline
\end{array}\end{array}\end{array}$
-Refer to Table 8. Which test statistic was likely used in these analyses-that is, which statistic should be in the heading for the column "Test Value"?

Quizplus · Accepted Answer

The test values in the table are all significant, so they must have been obtained from a hypothesis testing procedure. The odds ratios and confidence intervals suggest that a logistic regression analysis was performed. The only test statistic associated with logistic regression is the likelihood ratio chi-square (χ2) test, denoted as χ² in some textbooks. Therefore, the correct answer is C.

Questions Pertain to the Following Table (Table 8), Which Presents