The Market Share pages provide a rock-solid foundation for understanding a home health agency's competitive position in its region, by state or by county. The numbers on these pages are counts of patient stays who were admitted to home health care during the quarter identified in each column for the selected region. The percentages are the counts in each column divided by the total count of patient stays for the same region.
The Trella Health Home Health Solution contains two market share pages: Market Share by State, and Market Share by County. There are two tables on each page. The first table contains total patient stays for the selected region by quarter, with a total of the most recent four quarters. The second table contains a list of all home health agencies in the selected region with each agency's respective patient stay counts and the percentage of the total that count represents.
Both tables show data for 8 quarters which reveal trends in patient counts over two years. It is important to remember that an upward trend in overall patient population is good, but the more critical indicator of success is growth against the overall patient population, or, as it is presented in the table, an increase in market share. In addition, the Market Share Table includes a % change for each agency for the period of the last four quarters.
The counts of patient stays in the Market Share pages are based on the location of the patients, not the location of any physician or facility. As a result, the counts on these pages will not match patient counts in any other table in the Solution. In addition, there are cases where the Market Share: County table on the detail page for a specific agency shows no data because the agency did not admit any patients from the county where the agency resides. For more information, see Identifying Location in the Data.
Understanding the Data
The market share reports help with three primary usage cases:
- Validating total market size - You can gain a perspective of overall patient care provided in the region by looking at the number of patient stays, which is found in the first table on either page. This provides a helpful baseline of comparison with individual home health agencies.
- Identifying trends - In both tables you are able to identify upward or downward trends of overall patient stays, patient stays for individual Home Health agencies and market share percentages.
- Making comparisons - You are able to mark notable agencies as favorites and then compare them in the Market Share table.
The most recent quarter of data is highlighted to remind you that the reported counts are smaller than expected. See Why is the most recent quarter of Home Health data Lower and highlighted?
Choosing the Region
On the Market Share by State page, you can select the state displayed in the top right navigation.
On the Market Share by County page, you will need to first select the State at the top right, and then select a county just above the table on the left.
Once you have chosen the region, the meaning of the data in each table is similar, the only difference being whether the numbers are for the chosen county or the entire state. It is easy to navigate between the county and state pages using the Quick navigation link to the right of the page title.
In the first table on each page, each column contains the counts for the period listed in the header for each of the three categories listed on the left:
|All Medicare Patients||This is the count of patient stays for all medicare patients in the selected Region (State or county). Remember that these are not patient counts, but stays (from admission to discharge) which could include multiple counts for a patient in a single column.|
|Home Health Only||This is the subset count of home health stays in the selected region for the period indicated in the header.|
|Mortalities||This row contains the total number of mortalities for the selected region for the period indicated in the header.|
Market Share Tables
|Home Health Agency/NPI||This is the agency name and NPI as listed in the CMS Provider Data (NPI) file. A searchable alias can be added to the contact information for any agency it is known by another name. (See MLHH in screenshot.)|
|County/State||County and State of the HHA, as listed in the NPI file. In this table, counts of stays are located based on the residence of the patients.|
|Last Four||This the total count of patient stays for the most recent four quarters. Because these counts are total patient stays, this is a true total of the last four quarters.|
|Named Quarters||Eight rolling quarters - There are two numbers in each column. The top number is the percent of the market share (total patient stays for the chosen region) that the number of stays represents. The number beneath is the number of patient stays for the home health agency in the row.|
|% Change Last Four||
% Change Last Four
The % change is NOT the change in market share, it is the percent of growth or loss of patient census based on the claims.
In order to calculate the final column in this table, we compare the distinct patient counts from the most recent four quarters of data with the previous four quarters. The most recent four quarters are summed to create a latter count, and the previous four quarters are summed to generate an earlier count. As you can see from the image below, we calculate the percent change using the following steps:
- Sum the patient counts from the most recent four quarters - this is our latter count. Example: 25+37+41+36 = 139 patients.
- Sum the patient counts from the previous four quarters - this is our earlier count. Example: 16*+53+34+40 = 143 patients. (*See note below.)
- Subtract the Earlier count from the Latter count - this is the difference between the two periods. If this subtraction yields a negative number, this signifies a drop in patient census over the two periods and will show as a negative percent change. 5,468-4,699 = 769
- Divide the difference by the Earlier count.
- Multiply by 100% to get a percentage
- This number is the % change in patient census from the two one-year periods.
Why don't the numbers match in this example?,
In 2017-Q2 our table shows 32 patients, but we use 16 in our calculation. Here is why:
1) Note the blue highlight for the metrics in 2018-Q2. The counts in the most recent quarter in the Home Health Solution are always short. For more information, see Why is the most recent quarter of Home Health data Lower and highlighted? This means that the overall count is short because of the most recent quarter.
2) Because we are comparing two blocks of four quarters of counts, we need to make a proportional change to the earlier count.
3) We look back in time at the smaller patient count for the earlier quarter from the time when the data was first released. This means that both "Q-2" counts are short for the same reason and this allows us to produce the most accurate estimation when comparing the counts from the two blocks of quarters.