2012 | Knox, Texas | Preventable hospital stays

Summary Information

Range in Texas (Min-Max):	32-217
Overall in Texas:	73
National Benchmark:	49 (90th percentile)

Ranking Methodology

Summary Measure:	Health Factors - Clinical Care (Quality of Care)
Weight in Health Factors:	5%
Years of Data Used:	2009

Map ↓
The counties are shaded with lighter counties having a better rank. Gray counties are not reported (NR).
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What It Is:

Preventable hospital stays are measured as the hospital discharge rate for ambulatory care-sensitive conditions per 1,000 Medicare enrollees.

Where It Comes From:

Estimates of preventable hospital stays were calculated for the County Health Rankings by the authors of the Dartmouth Atlas of Health Care using Medicare claims data.

Reason for Ranking:

Hospitalization for diagnoses amenable to outpatient services suggests that the quality of care provided in the outpatient setting was less than ideal. The measure may also represent the population’s tendency to overuse the hospital as a main source of care.

More Information

Table ↓
# Medicare Enrollees	Number of Medicare enrollees
Preventable Hosp. Rate	Discharges for Ambulatory Care Sensitive Conditions/Medicare Enrollees * 1,000
Error Margin	95% confidence interval reported by Dartmouth Institute
Z-Score	(Measure - Average of TX counties)/(Standard Deviation)

Place	# Medicare Enrollees	Preventable Hosp. Rate	Error Margin	Z-Score
Anderson	6,279	68	61-74	-0.84
Andrews	1,422	99	82-115	0.29
Angelina	9,656	92	86-98	0.06
Aransas	3,512	62	53-70	-1.07
Archer	973	80	61-98	-0.40
Armstrong				NR
Atascosa	3,714	97	87-107	0.23
Austin	3,427	71	62-80	-0.74
Bailey	939	157	131-183	2.45
Bandera	3,051	52	43-60	-1.45
Bastrop	7,219	89	82-96	-0.07
Baylor ^{^}	869	217	186-248	3.00
Bee	2,608	98	86-111	0.28
Bell	24,102	59	56-63	-1.15
Bexar	106,579	55	54-57	-1.31
Blanco	1,568	55	43-67	-1.33
Borden				NR
Bosque	2,807	80	69-91	-0.39
Bowie	10,939	72	67-77	-0.69
Brazoria	23,381	75	71-79	-0.58
Brazos	12,480	63	58-67	-1.03
Brewster	1,271	118	98-138	0.99
Briscoe				NR
Brooks	971	127	104-150	1.33
Brown	5,791	109	101-118	0.69
Burleson	2,626	80	69-91	-0.39
Burnet	6,026	81	74-89	-0.35
Caldwell	4,008	125	113-136	1.25
Calhoun	2,746	115	102-128	0.88
Callahan	2,022	51	40-61	-1.48
Cameron	30,382	78	75-82	-0.45
Camp	1,801	101	86-115	0.37
Carson	896	61	44-77	-1.11
Cass	4,890	109	99-118	0.65
Castro	929	107	86-129	0.61
Chambers	1,812	93	78-107	0.07
Cherokee	5,592	97	88-105	0.22
Childress	962	99	79-119	0.31
Clay	1,296	108	90-126	0.63
Cochran				0.00
Coke	685	67	48-87	NR
Coleman	1,758	98	83-113	0.26
Collin	42,201	66	63-68	-0.92
Collingsworth	516	156	122-189	2.39
Colorado	3,688	77	68-86	-0.50
Comal	13,858	52	48-55	-1.44
Comanche	2,473	97	85-110	0.24
Concho				NR
Cooke	4,876	89	81-98	-0.06
Coryell	5,361	84	76-92	-0.24
Cottle				NR
Crane				0.00
Crockett				0.00
Crosby	872	113	91-135	0.81
Culberson				NR
Dallam	1,110	109	89-129	0.68
Dallas	151,310	60	59-62	-1.12
Dawson	1,845	78	66-91	-0.45
Deaf Smith	2,012	68	57-80	-0.84
Delta	905	75	57-94	-0.57
Denton	36,103	80	77-84	-0.38
DeWitt	4,203	113	103-123	0.82
Dickens				NR
Dimmit	1,035	119	98-140	1.03
Donley	734	32	19-46	-2.15
Duval	1,385	112	94-130	0.79
Eastland	3,221	128	115-140	1.36
Ector	12,386	84	79-89	-0.25
Edwards				0.00
El Paso	52,469	57	55-59	-1.25
Ellis	12,627	65	61-70	-0.94
Erath	3,520	88	78-97	-0.12
Falls	2,064	105	92-119	0.54
Fannin	4,818	83	74-91	-0.30
Fayette	4,500	80	72-89	-0.38
Fisher	712	99	76-122	NR
Floyd	1,020	84	66-101	-0.27
Foard				NR
Fort Bend	26,762	59	56-62	-1.18
Franklin	1,270	129	108-149	1.39
Freestone	2,109	117	102-132	0.97
Frio	1,497	126	108-145	1.30
Gaines	1,344	100	82-117	0.33
Galveston	26,346	80	77-84	-0.38
Garza	601	94	68-119	0.10
Gillespie	5,553	37	32-42	-1.98
Glasscock				NR
Goliad	985	112	91-133	0.79
Gonzales	2,558	115	102-128	0.90
Gray	3,331	75	66-85	-0.57
Grayson	16,894	73	69-77	-0.66
Gregg	15,847	78	73-82	-0.49
Grimes	2,896	85	74-96	-0.21
Guadalupe	10,029	74	68-79	-0.62
Hale	4,147	75	66-83	-0.59
Hall	661	90	67-113	-0.04
Hamilton ^{^}	1,765	183	162-203	3.00
Hansford	767	78	58-99	-0.46
Hardeman	736	117	92-142	0.98
Hardin	5,365	81	73-89	-0.35
Harris	212,524	63	62-64	-1.02
Harrison	5,860	89	81-96	-0.08
Hartley				0.00
Haskell	1,141	77	61-93	-0.51
Hays	11,873	59	54-64	-1.17
Hemphill				NR
Henderson	10,686	102	95-108	0.40
Hidalgo	52,028	81	78-83	-0.38
Hill	5,334	87	79-95	-0.12
Hockley	2,515	87	75-99	-0.12
Hood	8,959	56	51-61	-1.27
Hopkins	4,678	79	71-87	-0.43
Houston	3,744	109	98-119	0.67
Howard	3,904	93	83-103	0.08
Hudspeth				0.00
Hunt	9,354	104	97-111	0.48
Hutchinson	2,972	58	49-66	-1.22
Irion				NR
Jack	931	155	129-182	2.38
Jackson	1,839	103	88-117	0.44
Jasper	5,185	72	64-79	-0.71
Jeff Davis				0.00
Jefferson	24,169	84	80-87	-0.26
Jim Hogg	629	114	87-140	0.85
Jim Wells	3,916	117	106-128	0.96
Johnson	12,489	97	91-103	0.22
Jones	2,007	126	111-142	1.30
Karnes	2,058	90	77-103	-0.03
Kaufman	9,957	93	86-99	0.07
Kendall	4,717	41	35-47	-1.82
Kenedy				NR
Kent				NR
Kerr	11,153	52	47-56	-1.44
Kimble	798	65	47-83	-0.95
King				NR
Kinney	637	48	30-65	NR
Kleberg	2,883	140	126-154	1.82
Knox	669	93	70-116	0.08
La Salle	599	109	82-137	0.69
Lamar	7,202	88	81-95	-0.11
Lamb	2,002	108	94-123	0.65
Lampasas	3,001	128	115-142	1.39
Lavaca	2,858	105	93-116	0.51
Lee	2,087	72	60-84	-0.69
Leon	3,595	82	72-91	-0.34
Liberty	5,550	125	115-134	1.25
Limestone	2,938	124	111-137	1.23
Lipscomb				NR
Live Oak	1,129	74	58-90	-0.61
Llano	5,729	69	62-76	-0.82
Loving				NR
Lubbock	25,449	81	77-84	-0.37
Lynn	803	68	49-86	-0.85
Madison	1,567	86	72-101	-0.17
Marion	1,389	108	90-125	0.62
Martin				0.00
Mason	875	66	49-84	NR
Matagorda	4,376	75	67-83	-0.58
Maverick	5,237	124	114-134	1.21
McCulloch	1,460	119	101-137	1.06
McLennan	24,327	51	48-53	-1.48
McMullen				NR
Medina	4,016	77	68-86	-0.50
Menard				NR
Midland	12,766	50	46-54	-1.50
Milam	3,818	67	59-75	-0.88
Mills	977	122	100-143	NR
Mitchell	1,123	134	112-156	1.59
Montague	3,620	130	118-143	1.46
Montgomery	33,646	73	70-76	-0.65
Moore	1,829	94	79-108	0.10
Morris	2,059	69	58-81	-0.79
Motley				NR
Nacogdoches	6,751	112	104-120	0.78
Navarro	6,284	93	86-101	0.09
Newton	1,386	74	59-88	-0.63
Nolan	2,339	134	119-149	1.59
Nueces	22,261	76	72-79	-0.56
Ochiltree	965	110	88-131	0.70
Oldham				NR
Orange	8,952	92	85-98	0.04
Palo Pinto	3,998	75	66-84	-0.59
Panola	3,012	107	95-118	0.59
Parker	12,969	81	76-86	-0.36
Parmer	1,109	111	91-131	0.76
Pecos	1,559	125	106-143	1.25
Polk	11,861	85	79-91	-0.22
Potter	11,471	61	56-65	-1.11
Presidio	1,319	78	63-94	-0.46
Rains	1,605	63	50-76	-1.02
Randall	12,387	50	46-54	-1.51
Reagan				0.00
Real	779	64	45-83	-0.99
Red River	2,581	166	150-182	2.77
Reeves	1,556	125	107-143	1.27
Refugio	1,261	81	65-97	-0.35
Roberts				NR
Robertson	2,330	80	69-91	-0.39
Rockwall	5,814	82	74-90	-0.33
Runnels	1,892	89	75-102	-0.07
Rusk	5,063	107	98-116	0.61
Sabine	2,300	100	86-113	0.34
San Augustine	1,477	123	106-141	1.20
San Jacinto	2,204	137	121-154	1.71
San Patricio	5,346	84	76-92	-0.23
San Saba	1,026	71	55-88	-0.71
Schleicher				NR
Scurry	2,171	105	91-118	0.52
Shackelford	500	101	74-129	NR
Shelby	3,443	99	89-110	0.32
Sherman				NR
Smith	25,564	57	54-60	-1.25
Somervell	898	127	102-151	1.32
Starr	5,507	145	134-155	1.98
Stephens	1,346	111	93-129	0.76
Sterling				NR
Stonewall				NR
Sutton	554	139	106-171	1.76
Swisher	1,335	74	60-89	-0.61
Tarrant	98,151	67	66-69	-0.86
Taylor	15,472	51	47-55	-1.46
Terrell				NR
Terry	1,573	128	110-146	1.37
Throckmorton				NR
Titus	3,040	94	83-105	0.11
Tom Green	13,710	68	63-72	-0.85
Travis	59,671	57	55-59	-1.26
Trinity	2,740	116	103-129	0.93
Tyler	3,027	108	96-120	0.65
Upshur	4,294	101	91-111	0.39
Upton				0.00
Uvalde	3,305	78	68-88	-0.47
Val Verde	5,334	49	43-55	-1.55
Van Zandt	7,314	81	74-88	-0.36
Victoria	10,210	101	94-107	0.36
Walker	5,635	82	75-90	-0.31
Waller	1,847	82	69-95	-0.33
Ward	1,372	76	61-90	-0.56
Washington	5,413	55	49-61	-1.33
Webb	17,881	85	81-90	-0.20
Wharton	5,351	67	61-74	-0.86
Wheeler	925	115	93-138	0.91
Wichita	16,388	67	63-71	-0.89
Wilbarger	1,880	73	60-85	-0.67
Willacy	2,032	88	75-101	-0.09
Williamson	31,134	55	52-58	-1.32
Wilson	3,286	65	56-74	-0.95
Winkler	781	86	65-107	-0.18
Wise	5,536	93	84-102	0.08
Wood	8,785	84	78-91	-0.23
Yoakum	874	94	73-114	0.10
Young	3,248	92	82-103	0.05
Zapata	1,203	102	83-121	0.42
Zavala	1,170	97	79-115	0.23

NR in Z-Score column indicates county "not ranked"
^Z-Score was capped at -3.0/3.0 due to population < 20,000

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2012 | Knox, Texas | Preventable hospital stays

Summary Information

Ranking Methodology