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Table 1 Characteristics of women with clinically suspected acute uncomplicated cystitis: External validation cohort and development cohort [8]

From: External validation study of a clinical decision aid to reduce unnecessary antibiotic prescriptions in women with acute cystitis

 

Validation Cohort

Development Cohort

Characteristic

Number

Percent

Number

Percent

Total

397

100.0

331

100.0

Age

  ≤ 50 years old

194

48.9

211

63.8

  > 50 years of age

203

51.1

120

36.3*

Province

 British Columbia

61

15.4

56

16.9

 Alberta

44

11.0

25

7.6

 Saskatchewan

8

2.0

13

3.9

 Manitoba

8

2.0

11

3.3

 Ontario

208

52.4

195

58.9

 Quebec

27

6.8

3

0.9

 New Brunswick

9

2.3

8

2.4

 Nova Scotia

9

2.3

12

3.6

 Prince Edward Island

7

1.8

2

0.6

 Newfoundland

16

4.0

6

1.8

Symptoms

 Dysuria

335

84.4

262

79.2

 Frequency

349

87.9

304

92.1

 Urgency

315

79.4

273

83.2

 History of fever

13

3.3

13

4.0

 Flank pain

69

17.4

83

25.4*

Management

 Would order culture

351

88.4

259

78.7*

 Prescribed antibiotic

381

96.0

292

88.5*

Urine leukocytes (>trace)

316

79.6

243

73.4

Urine nitrites (any)

123

31.0

88

26.6

Positive Urine Culture

245

61.7

208

62.8

  1. *p < 0.01, adjusted for clustering by physician