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Strokes

Volume 494: debated on Wednesday 17 June 2009

To ask the Secretary of State for Health (1) how many cases of stroke there were in (a) males and (b) females in each age group in North Devon in each year since 1999; (280159)

(2) how many (a) males and (b) females in each age group under the age of 50 years were diagnosed as having had a stroke in each year since 1999.

The following tables and notes show how many finished admission episodes for stroke, broken down by age group and sex for the years 1999-2000 to 2007-08 and how many finished admission episodes for stroke in Devon Primary Care Trust (PCT) broken down by age group and sex.

Count of finished admission episodes for stroke1 in Devon PCT, broken down by age group and sex, for the years 1999-2000 to 2007-08: Activity in English NHS Hospitals and English NHS commissioned activity in the independent sector

Sex

Age group

2007-08

2006-07

2005-06

2004-05

2003-04

2002-03

2001-02

2000-01

1999-2000

Male

0-9

*

*

*

*

*

6

0

0

*

10-19

0

*

*

*

*

*

*

*

0

20-29

*

*

*

*

*

*

7

6

*

30-39

13

8

*

12

11

15

10

18

9

40-49

31

45

25

21

27

31

20

22

19

50-59

61

71

69

78

77

64

89

61

56

60-69

179

129

121

132

128

121

118

133

149

70-79

268

277

268

232

250

264

302

300

340

80-89

298

302

285

261

284

229

230

219

245

90+

70

76

70

68

43

60

39

45

39

Unknown

*

*

9

*

*

0

0

0

0

Female

0-9

*

*

0

*

*

*

0

0

*

10-19

0

*

*

*

0

*

0

*

*

20-29

*

*

*

11

*

*

*

*

*

30-39

11

*

11

9

12

17

6

8

8

40-49

29

23

16

16

34

23

32

19

26

50-59

43

48

43

54

30

54

55

60

53

60-69

114

85

93

100

82

81

80

98

98

70-79

248

255

269

236

240

243

260

315

292

80-89

453

469

430

413

406

400

422

427

390

90+

173

142

178

200

164

141

126

127

134

Unknown

9

*

13

6

*

0

0

0

0

Source:

Hospital Episode Statistics (HES). The NHS Information Centre for health and social care.

Count of finished admission episodes for strokel, broken down by age group and sex, for the years 1999-2000 to 2007-08 in England: Activity in English NHS Hospitals and English NHS commissioned activity in the independent sector

Sex

Age group

2007-08

2006-07

2005-06

2004-05

2003-04

2002-03

2001-02

2000-01

1999-2000

Male

0-9

163

158

163

154

145

136

97

117

153

10-19

113

119

164

141

133

175

135

112

110

20-29

347

322

291

269

305

278

325

265

279

30-39

814

899

897

862

852

809

867

760

681

40-49

2,312

2,364

2,244

2,296

2,118

2,038

1,904

1,840

1,877

50-59

4,383

4,616

4,718

4,837

4,633

4,640

4,595

4,346

4,517

60-69

7,891

7,683

7,877

8,106

8,140

8,207

8,079

8,202

8,680

70-79

11,670

11,718

12,628

12,332

12,798

13,268

13,315

13,633

14,990

80-89

10,208

10,340

10,447

10,114

10,431

10,407

9,951

9,429

9,444

90+

1,910

1,938

1,951

1,791

1,782

1,750

1,540

1,451

1,372

Unknown

13

49

12

11

13

96

38

103

50

Female

0-9

119

83

86

95

80

85

61

67

74

10-19

76

107

100

149

77

84

89

83

72

20-29

274

264

277

253

279

279

254

270

301

30-39

703

792

746

779

759

788

716

755

776

40-49

1,918

1,801

1,774

1,959

1,692

1,754

1,616

1,544

1,619

50-59

2,887

3,055

3,203

3,224

3,245

3,304

3,161

3,036

3,236

60-69

5,135

4,986

5,281

5,543

5,481

5,554

5,408

5,772

6,222

70-79

10,439

10,828

11,822

11,611

12,133

12,731

12,857

13,252

14,773

80-89

15,858

16,255

16,608

16,867

17,004

17,340

16,708

16,497

16,823

90+

5,583

5,653

5,933

5,650

5,563

5,506

5,023

4,837

4,826

Unknown

34

64

18

18

9

122

50

77

47

Other/Unknown

0-9

0

0

0

0

0

0

0

5

0

10-19

0

0

3

0

0

0

o

1

0

20-29

1

0

0

0

0

0

0

0

0

30-39

0

0

1

0

0

3

0

0

0

40-49

0

1

1

0

1

0

0

0

5

50-59

0

0

2

2

0

0

2

2

10

60-69

1

2

0

1

1

1

0

6

9

70-79

2

1

3

2

0

2

2

10

27

80-89

1

5

3

1

3

3

2

10

43

90+

1

3

1

2

0

1

0

5

10

Unknown

2

0

0

0

0

0

44

1

1

1 The following ICD-10 codes have been used:

160 Subarachnoid haemorrhage

161 Intracerebral haemorrhage

162 Other nontraumatic intracranial haemorrhage

163 Cerebral infarction

164 Stroke, not specified as haemorrhage or infarction

Notes:

Ungrossed data

Figures have not been adjusted for shortfalls in data (i.e. the data are ungrossed).

Finished admission episodes

A finished admission episode is the first period of inpatient care under one consultant within one healthcare provider. Finished admission episodes are counted against the year in which the admission episode finishes. Admissions do not represent the number of inpatients, as a person may have more than one admission within the year.

Primary diagnosis

The primary diagnosis is the first of up to 20 (14 from 2002-03 to 2006-07 and 7 prior to 2002-03) diagnosis fields in the Hospital Episode Statistics (HES) data set and provides the main reason why the patient was admitted to hospital.

Data quality

HES are compiled from data sent by more than 300 NHS trusts and primary care trusts (PCTs) in England. Data are also received from a number of independent sector organisations for activity commissioned by the English NHS. The NHS Information Centre for health and social care liaises closely with these organisations to encourage submission of complete and valid data and seeks to minimise inaccuracies and the effect of missing and invalid data via HES processes. While this brings about improvement over time, some shortcomings remain.

PCT/strategic health authority (SHA) data quality

PCT and SHA data were added to historic data years in the HES database using 2002-03 boundaries, as a one-off exercise in 2004. The quality of the data on PCT of treatment and SHA of treatment is poor in 1996-97,1997-98 and 1998-99, with over a third of all finished episodes having missing values in these years. Data quality of PCT of GP practice and SHA of General practitioners practice in 1997-98 and 1998-99 is also poor, with a high proportion missing values where practices changed or ceased to exist. There is less change in completeness of the residence-based fields over time, where the majority of unknown values are due to missing postcodes on birth episodes. Users of time series analysis including these years need to be aware of these issues in their interpretation of the data.

Assessing growth through time

HES figures are available from 1989-90 onwards. The quality and coverage of the data have improved over time. These improvements in information submitted by the NHS have been particularly marked in the earlier years and need to be borne in mind when analysing time series. Some of the increase in figures for later years (particularly 2006-07 onwards) may be due to the improvement in the coverage of independent sector activity. Changes in national health service practice also need to be borne in mind when analysing time series. For example, a number of procedures may now be undertaken in out-patient settings and may no longer be accounted for in the HES data. This may account for any reductions in activity over time.

Small numbers

To protect patient confidentiality, figures between one and five have been suppressed and replaced with "*" (an asterisk). Where it was possible to identify numbers from the total due to a single suppressed number in a row or column, an additional number (the next smallest) has been suppressed.

Source:

Hospital Episode Statistics (HES). The NHS Information Centre for health and social care.