Geographical Medical Variation Charts
Quality Analysis Charts
Peer Groups
List of Charts

Geographical Medical Variation Charts

We have presented all of the variation charts in the same way. The title describes the surgical procedure or activity displayed in the chart and the date range for the information listed. The data is all obtained in these charts from the hospital inpatient discharge database maintained by the Maine Health Data Organization.

The vertical axis lists the hospital service areas (HSAs). Maine has been divided into 34 HSAs. We do not use the York HSA because too many citizens of that area get their care in New Hampshire. Therefore, for York this method does not work. The horizontal axis is the percent difference or variation of each HSA from the state mean or average (at 0%). Positive differences are shown in bars to the right of 0% and negative differences are shown to the left of 0%. If the bar is orange, then the difference is very unlikely to be by chance. Another way to say it is that the difference is statistically significant.

For an overview of how to read our Medical Variation Charts, click here.

Quality Analysis Charts

We have presented all of the quality analysis charts in the same way. The title describes the topic and the year of the data. The vertical axis is the rate of the topic presented. We use confidence intervals in these charts. Larger confidence intervals suggest smaller sample sizes or fewer hospitals in the peer group in these charts. The blue horizontal lines represent the state average confidence intervals. To be comfortable saying that a data point is truly different from the state mean the confidence intervals cannot overlap.

For an overview of how to read our Quality Analysis Charts, click here.

MHA Hospital Peer Groups

The peer groups were established by the Maine Hospital Association. These were considered to be groups of similar type hospitals.

Peer Group	Hospital	Location	Beds
Peer Group A	Central Maine Medical Center Eastern Maine Medical Center MaineGeneral Medical Center Maine Medical Center	Lewiston Bangor Augusta/Waterville Portland	250 411 287 606
Peer Group B	Aroostook Medical Center Mercy Hospital Mid Coast Hospital Penobscot Bay Medical Center Southern Maine Medical Center St. Joseph Hospital St. Mary’s Regional Medical Center York Hospital	Presque Isle/Fort Fairfield Portland/Westbrook Brunswick Rockport Biddeford Bangor Lewiston York	105 230 104 109 150 112 233 66
Peer Group C	Cary Medical Center Franklin Memorial Hospital Goodall Hospital Maine Coast Memorial Hospital	Caribou Farmington Sanford Ellsworth	65 70 49 64
Peer Group D	Inland Hospital Miles Memorial Hospital Northern Maine Medical Center Parkview Adventist Medical Center Stephens Memorial	Waterville Damariscotta  Fort Kent Brunswick Norway	48 35 49 55 50
Peer Group E	Blue Hill Memorial Hospital Bridgton Hospital Calais Regional Hospital Charles A. Dean Memorial Hospital Down East Community Houlton Regional Hospital Mayo Regional Hospital Millinocket Regional Hospital Mount Desert Island Hospital Penobscot Valley Hospital Redington-Fairview General Hospital Rumford Hospital St. Andrews Hospital Sebasticook Valley Hospital Waldo County General Hospital	Blue Hill Bridgton Calais Greenville Machias Houlton Dover-Foxcroft Millinocket Bar Harbor Lincoln Skowhegan Rumford Boothbay Harbor Pittsfield Belfast	25 25 25 14 25 25 25 25 25 25 25 25 25 25 25
Peer Group F	Acadia Hospital Spring Harbor Hospital	Bangor South Portland	100 111
Peer Group G	New England Rehabilitation Hospital	Portland	100