Descriptive Statistics
Calculated by taking the difference between the highest and lowest values.
What is the range?
Research that is designed to follow the study participants into the future to see if there is a relationship that develops for the study variables.
What is a prospective study?
The result of the official count taken at midnight.
What is the daily inpatient census?
The death of any woman from any cause related to, or aggravated by, pregnancy or its management, regardless of the duration or site of the pregnancy.
What is the maternal death rate?
The proportion or percentage of infections in clean surgical cases out of the total number of surgical operations performed.
What is the postoperative infection rate?
The average of a group of numerical values.
What is the mean?
This design is the most powerful when trying to establish cause and effect.
What is an experimental study?
In calculating the average daily census these two are reported separately.
What are the A&C and newborn census?
Based on the number of patients discharged, alive or dead, from the hospital.
What is the hospital death rate?
The proportion or percentage of deaths that are followed by the percentage of deaths that are followed by the performance of autopsy.
What is the gross autopsy rate?
The value that occurs most frequently in a given set of observations or values.
What is the mode?
A methodology where the researcher delves into a particular culture or organization in great detail in order to learn everything there is to know about them and to develop new hypotheses.
What is ethnography?
A unit of measure that reflects the services received by one inpatient during a 24-hr period.
What is an inpatient service day (IPSD)?
The proportion of all discharges that ended in death.
What is the gross death rate?
Bodies that have been removed by the coroner or ME are excluded from the denominator because they were not available for an autopsy.
What is the net autopsy rate?
The measure of variability that is used most often and displays how data are related to the mean.
What is the standard deviation?
A type of study that determines if a relationship may exist between two variables.
What is a correlational study?
The total number of IPSDs for a week, a month, and so on can be divided by the total number of days in the period of interest to obtain this.
What is the average daily census?
Categories of which fetal deaths are classified.
What are length of gestation and weight?
These may be calculated for the entire hospital or a specific unit in the hospital. They may also be calculated for the specific types of infections.
What are hospital-acquired (nosocomial) infection rates?
The number of times something occurs in a particular population or sample over a specific period of time.
What is the frequency?
Characteristics other than the characteristic of interest that may also be related to the disease under study.
What are confounding factors?
The termination of hospitalization through the formal release of an inpatient by the hospital.
What is an inpatient discharge?
An adjusted death rate calculated with the assumption that certain deaths should not count against the hospital (i.e. patients that die within 48hrs of admission).
What is the net death rate?
The rate of death due to a specified cause.
What is the cause-specific mortality rate?