Chlamydia Infections in the School District
Geographic Areas of New York State*, 2012-2014
Special Populations Data Brief: Adolescents
Bureau of STD Prevention and Epidemiology
Division of Epidemiology, Evaluation, and Research
*Excludes New York City
Chlamydia Infections in the School District Geographic Areas of New York
Comparison of the reported number of infections in school district geographic areas relative to the
infection rate in New York State excluding New York City, Females,
Age 10 to 19 years, 2012-2014
76% of New Yorkers support condom
availability in High Schools
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
61% of high school students report
having sexual intercourse by 12th grade
More than double expected reported infections
120% to 200% more reported infections than expected
Within 20% of expected number of infections
20% to 50% lower than Expected
Less than half the expected infections
Fewer than six infections
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Infections in the School District Geographic Areas of the Buffalo Region
More than double expected reported infections
Buffalo
Medina
Scio
Niagara Falls
Salamanca
Frewsburg
Lockport
Dunkirk
Cheektowaga
Jamestown
Gowanda
Friendship
Cleveland Hill
Forestville
Batavia
Warsaw
Falconer
Southwestern at Jamestown
Lackawanna
Bolivar-Richburg
Tonawanda
Pavilion
Perry
Cassadaga Valley
North Tonawanda
Newfane
Depew
Cheektowaga-Sloan
Kenmore-Tonawanda
Royalton-Hartland
North Collins
Randolph
Silver Creek
Olean
Albion
Wilson
Holley
Westfield
Cheektowaga-Maryvale
Ellicottville
Niagara-Wheatfield
Springville-Griffith Institute
Chautauqua Lake
Evans-Brant (Lake Shore)
Holland
West Valley
Williamsville
Wellsville
Byron-Bergen
Frontier
Cattaraugus-Little Valley
Alden
Amherst
West Seneca
Sherman
Yorkshire-Pioneer
Starpoint
Lancaster
Franklinville
Kendall
Orchard Park
Oakfield-Alabama
Grand Island
Bemus Point
Eden
Le Roy
Sweet Home
Hamburg
Clarence
Akron
Attica
Barker
East Aurora
Lewiston-Porter
Alfred-Almond
Fredonia
Iroquois
Allegany-Limestone
Fewer than six infections
Comparison of the reported number of
infections in school district geographic areas
relative to the infection rate in New York State
excluding New York City, Females,
Age 10 to 19 years, 2012-2014
120% to 200% more reported infections than
expected
Within 20% of expected number
of infections
20% to 50% lower than
expected
76% of New Yorkers support condom
availability in High Schools
Less than half the expected
infections
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
61% of high school students report
having sexual intercourse by 12th grade
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Infections in the School District Geographic Areas of the Rochester Region
More than double expected reported infections
Rochester
Bath
Romulus
Odessa-Montour
Mount Morris
Clyde-Savannah
120% to 200% more reported infections than
expected
Lyons
Williamson
Comparison of the reported number of
infections in school district geographic areas
relative to the infection rate in New York State
excluding New York City, Females,
Age 10 to 19 years, 2012-2014
Avon
Elmira
East Irondequoit
Waterloo
Elmira Heights
Dansville
Sodus
Hornell
Gates-Chili
Within 20% of expected number
of infections
Geneva
Greece
Canandaigua
Waverly
Campbell-Savona
Keshequa
Corning
Wayland-Cohocton
Caledonia-Mumford
Newark
West Irondequoit
Horseheads
Addison
Watkins Glen
Gorham-Middlesex
North Rose-Wolcott
20% to 50% lower than
expected
Manchester-Shortsville
Palmyra-Macedon
Bloomfield
Gananda
Hilton
Phelps-Clifton Springs
Victor
Seneca Falls
Brighton
Wayne
Livonia
Spencerport
Honeoye
Webster
Penn Yan
Spencer-Van Etten
Less than half the expected
infections
Naples
76% of New Yorkers support condom
availability in High Schools
Fairport
Rush-Henrietta
Marion
Dundee
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
Brockport
Churchville-Chili
East Rochester
Honeoye Falls-Lima
Penfield
61% of high school students report
having sexual intercourse by 12th grade
Pittsford
Geneseo
Fewer than six infections
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Infections in the School District Geographic Areas of the Central NY Region
Onondaga
Hermon-DeKalb
Utica
Copenhagen
Lyncourt
Syracuse
Ogdensburg
Chenango Valley
Binghamton City
Watertown
Rome
Adirondack
Norwich
Liverpool
Homer
Marathon
Bainbridge-Guilford
Frankfort-Schuyler
Gouverneur
Fulton
Auburn
Johnson City
Camden
Herkimer
Little Falls
Solvay
McGraw
LaFargeville
North Syracuse
East Syracuse-Minoa
Unadilla Valley
Susquehanna Valley
Central Valley
Deposit
Waterville
Oneida
Union-Endicott
South Jefferson
Sandy Creek
Thousand Islands
Weedsport
Oxford Academy and
Baldwinsville
Dryden
West Genesee
New Hartford
Port Byron
Carthage
Canastota
Lansing
Sherrill
Newfield
Tully
Chittenango
Mexico
Pulaski
Westhill
Altmar-Parish-W.town
Central Square
Owego-Apalachin
Candor
Lisbon
Cato-Meridian
Tupper Lake
South Lewis
Brasher Falls
Red Creek
General Brown
Morrisville-Eaton
Whitney Point
Mount Markham
Windsor
Indian River
New York Mills
Jordan-Elbridge
Groton
Holland Patent
Cortland
Phoenix
Massena
Marcellus
Hannibal
Union Springs
Canton
Whitesboro
Sherburne-Earlville
Cazenovia
Oswego
Newark Valley
Trumansburg
Maine-Endwell
Skaneateles
Tioga
Greene
Jamesville-DeWitt
Potsdam
Chenango Forks
Ithaca
Fayetteville-Manlius
Vestal
Clinton
Fewer than six infections
More than double expected reported infections
120% to 200% more reported infections than expected
Comparison of the reported number of
infections in school district geographic areas
relative to the infection rate in New York State
excluding New York City, Females,
Age 10 to 19 years, 2012-2014
Within 20% of expected number
of infections
20% to 50% lower than
expected
Less than half the expected
infections
76% of New Yorkers support condom
availability in High Schools
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
61% of high school students report
having sexual intercourse by 12th grade
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Infections in the School District Geographic Areas of the Capital District Region
More than double expected reported infections
Jefferson
Watervliet
Laurens
Fort Edward
Schenectady
Glens Falls Common
Johnstown
Green Island
Hudson
Salmon River
Glens Falls City
Albany
Moriah
Troy
Cairo-Durham
Hudson Falls
Corinth
Lansingburgh
Salem
Gloversville
Cohoes
Duanesburg
Sidney
Amsterdam
Bethlehem
Beekmantown
Queensbury
South Glens Falls
Catskill
Warrensburg
Ticonderoga
Scotia-Glenville
Richfield Springs
Stillwater
Peru
South Colonie
Greenwich
Schodack
Waterford-Halfmoon
Delhi
Brunswick (Brittonkill)
Worcester
Hadley-Luzerne
Lake George
Wynantskill
Greenville
Edmeston
Rensselaer
Menands
Rotterdam-Mohonasen
Saranac
Mechanicville
Ballston Spa
Chateaugay
Northern Adirondack
Burnt Hills-Ballston Lake
Cooperstown
Saratoga Springs
Otego-Unadilla (Unatego)
Middleburgh
Cobleskill-Richmondville
East Greenbush
Fort Plain
Brushton-Moira
Kinderhook (Ichabod Crane)
Fonda-Fultonville
Ravena-Coeymans-Selkirk
Northeastern Clinton
Voorheesville
Hoosic Valley
AuSable Valley
Schuylerville
Plattsburgh
Averill Park
Whitehall
Coxsackie-Athens
Oneonta
Mayfield
Malone
Berlin
Cambridge
Broadalbin-Perth
Oppenheim-Ephratah-St. Johnsville
Schoharie
Berne-Knox-Westerlo
Shenendehowa
Niskayuna
Chatham
Copake-Taconic Hills
Saranac Lake
North Colonie
Galway
Canajoharie
Granville
Schalmont
Guilderland
Fewer than six infections
120% to 200% more reported infections than
expected
Comparison of the reported number of
infections in school district geographic areas
relative to the infection rate in New York State
excluding New York City, Females,
Age 10 to 19 years, 2012-2014
Within 20% of expected number
of infections
20% to 50% lower than
expected
76% of New Yorkers support condom
availability in High Schools
Less than half the expected
infections
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
61% of high school students report
having sexual intercourse by 12th grade
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Infections in the School District Geographic Areas of the Hudson Valley Region
More than double expected reported infections
Hastings-on-Hudson
Sullivan West
Mount Pleasant
Pocantico Hills
Liberty
Poughkeepsie
Mount Vernon
Peekskill
Elmsford
Florida
Haldane
Middletown
Newburgh
Yonkers
Kingston
Port Chester-Rye
Dobbs Ferry
Monticello
White Plains
Haverstraw-Stony Point
New Rochelle
Highland
Eldred
Port Jervis
Tuckahoe Union
Chester
Beacon
Valhalla
Marlboro
Katonah-Lewisboro
Pine Bush
Saugerties
Tarrytown
Greenburgh
Northeast (Webutuck)
Ossining
Goshen
East Ramapo (Spring Valley)
Nyack
Spackenkill
Bedford
Minisink Valley
Wappingers
Wallkill
Pearl River
Warwick Valley
Pelham
Putnam Valley
Nanuet
Hyde Park
Tri-Valley
Somers
Cornwall
Arlington
Dover
Hendrick Hudson
Brewster
Fallsburg
Lakeland
Ellenville
Pawling
Valley (Montgomery)
Clarkstown
Eastchester
Monroe-Woodbury
Highland Falls
New Paltz
Rye Neck
Mahopac
Ramapo (Suffern)
Washingtonville
Ardsley
Onteora
Mamaroneck
Yorktown
Carmel
South Orangetown
Rondout Valley
Red Hook
Chappaqua
Harrison
Fewer than six infections
120% to 200% more reported infections than
expected
Comparison of the reported number of
infections in school district geographic areas
relative to the infection rate in New York State
excluding New York City, Females,
Age 10 to 19 years, 2012-2014
Within 20% of expected number
of infections
20% to 50% lower than
expected
Less than half the expected
infections
76% of New Yorkers support condom
availability in High Schools
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
61% of high school students report
having sexual intercourse by 12th grade
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Infections in the School District Geographic Areas of Long Island
More than double expected reported infections
Hempstead
Roosevelt
Westbury
Wyandanch
Amityville
Freeport
Southampton
Central Islip
Montauk
Bay Shore
Copiague
Greenport
South Country
Brentwood
North Babylon
William Floyd (Mastic Beach)
East Quogue
Longwood
Babylon
East Moriches
Malverne
Uniondale
Hampton Bays
Sag Harbor
Glen Cove
Riverhead
Baldwin
West Babylon
Springs
Shoreham-Wading River
Huntington
West Hempstead
South Huntington
Patchogue-Medford
Brookhaven-Comsewogue
Long Beach
Oceanside
Deer Park
Elwood
Rockville Centre
Lawrence
East Hampton
Harborfields
Mount Sinai
Farmingdale
Half Hollow Hills
Hicksville
East Meadow
Northport-East Northport
East Islip
Port Washington
Massapequa
Locust Valley
Oyster Bay-East Norwich
Sewanhaka Central High School
Center Moriches
Lindenhurst
Roslyn
Mattituck-Cutchogue
Hauppauge
Mineola
West Islip
Manhasset
Middle Country
Islip
Eastport-South Manor
Valley Stream Central High School
Sachem
Port Jefferson
Rocky Point
Bethpage
Lynbrook
Syosset
Connetquot
Kings Park
Bayport-Blue Point
Plainview-Old Bethpage
Seaford
Smithtown
Hewlett-Woodmere
Sayville
Plainedge
North Shore
Levittown
Wantagh
Three Village
Herricks
Bellmore-Merrick Central High School
Great Neck
Commack
Jericho
Garden City
Fewer than six infections
120% to 200% more reported infections than expected
Comparison of the reported number of
infections in school district geographic areas
relative to the infection rate in New York State
excluding New York City, Females,
Age 10 to 19 years, 2012-2014
Within 20% of expected number of infections
20% to 50% lower than
expected
Less than half the expected
infections
76% of New Yorkers support condom
availability in High Schools
30,000 New York teens aged 15 to 19
are diagnosed with chlamydia each year
61% of high school students report
having sexual intercourse by 12th grade
Sources: NYSDOH Bureau of STD Prevention and Epidemiology [email protected]
2014 Behavioral Risk Factor Surveillance System, and 2012 Youth Risk Behavior Surveillance System
Chlamydia Incidence in the School District Geographic Areas of the New York
Methods
All new Chlamydia diagnoses between 2012 and 2014 among females age 10 to 19 who lived in New York State
excluding New York City were included in this study. New Chlamydia diagnoses were reported by laboratories and
health care providers to the New York State Department of Health, as required by public health law. The street
address of the patient was used to determine the school district geographic area to which each patient was assigned,
by comparing the geographic coordinates of the street address to the maps of the specific school district geographic
areas. As a result, the school district geographic area was determined based on the residence of the patient, not
school attendance. The geographic boundaries of all Unified School Districts and Secondary School Districts for the
2013-2014 school year were obtained from the National Center for Education Statistics and US Census Bureau
(http://nces.ed.gov/programs/edge/geographicDistrictBoundary.aspx). These geographic areas are updated yearly
based on information provided by the State Education Department. Patients for whom the geographic coordinates
were unknown were assigned to school district geographic areas based on other factors, such as ZIP Code.
The National Center for Education Statistics and US Census Bureau were also the source of information on the number
of female residents age 10 to 19 years living within the boundaries of each school district geographic area between
2010 and 2014, (http://nces.ed.gov/programs/edge/demographicACS.aspx). In order to coincide with the Chlamydia
incidence data, these population data relate to the residents of the geographic area, regardless of actual school
attendance. For example, females who are 19 years of age are included even if they have already graduated from High
School.
The number of expected Chlamydia diagnoses in each school district geographic area was calculated based on the
number of females age 10 to 19 years that live in the school district geographic area and the proportion of all females
age 10 to 19 in New York who are diagnosed with Chlamydia per year. The proportion of all females age 10 to 19 in
New York who are diagnosed with Chlamydia per year is the incidence rate. The incidence rate multiplied by the
relevant population of the school district geographic area provided the number of expected Chlamydia diagnoses.
Since the incidence rate of Chlamydia varies by age, this calculation was done separately for the age groups 10-14, 1517, and 18-19 years, then the expected number in each of these age groups was combined to determine the total
expected number of cases.
The comparisons shown in the maps and charts are a comparison of the actual number of females age 10 to 19 years
that were diagnosed with Chlamydia in the school district geographic area (observed) relative to the number expected.
The observed number is divided by the expected number, then multiplied by 100, to develop a percentage ratio of the
observed to expected Chlamydia diagnoses. A ratio with a value under 100% indicates there were fewer females
diagnosed with Chlamydia than expected when compared to the state rate. A ratio greater than 100% indicates more
diagnoses.
For confidentiality reasons, the number of observed and expected infections is not provided for geographic areas with
fewer than six reported Chlamydia infections from 2012-2014.
Limitations
These analyses rely on diagnosed infections reported to the New York State Department of Heath, primarily via
mandated electronic laboratory reporting. It is believed that many people may have a Chlamydia infection without
symptoms, so routine screening for Chlamydia during physician office visits may be the only way some young women
with Chlamydia infection will be diagnosed and treated. This screening is recommended annually for sexually active
women ages 16 to 24 years. Geographic areas with poorer screening will appear to have lower rates of Chlamydia
infections, but in fact this would be due to more women having undiagnosed infection. Undiagnosed infection
increases the risk of pelvic inflammatory disease and infertility.
Another limitation of the reported data on Chlamydia is related to the geographic location to which women are
ascribed. As mentioned above, living within the school district geographic boundaries does not mean the women
attend school in that district.