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Table 1 Baseline sociodemographic and clinical characteristics of patients according to dataset

From: Resource use and cost associated with computerized decision support system and usual care in managing patients with atrial fibrillation: analysis of IMPACT-AF randomized trial data

 

Full sample

(n = 1133)

NSHA case costing

(n = 466)

12-month questionnaire

(n = 635)

Monthly diaries

(n = 223)

 

n

(%)

n

(%)

n

(%)

n

(%)

CDS

590

(52.1)

207

(44.4)

334

(52.6)

113

(50.7)

Sociodemographic characteristics

 Age, years

  Mean (SD)

72.3

(10.0)

71.6

(10.5)

72.2

(8.9)

73.1

(8.2)

 Male sex

701

(61.9)

303

(65.0)

396

(62.4)

124

(55.6)

 Rural location

613

(54.1)

75

(16.1)

349

(55.0)

121

(54.3)

 Highest level of completed education

  Some high school

165

(14.6)

58

(12.4)

121

(19.1)

45

(20.2)

  Completed high school

161

(14.2)

63

(13.5)

105

(16.5)

44

(19.7)

  College/Trade school

187

(16.5)

80

(17.2)

145

(22.8)

66

(29.6)

  University undergraduate

105

(9.3)

51

(10.9)

79

(12.4)

27

(12.1)

  University postgraduate

88

(7.8)

44

(9.4)

65

(10.2)

26

(11.7)

  Not documented

393

(34.7)

170

(36.5)

190

(18.9)

15

(6.7)

 Annual household income, Canadian dollars

  <$25 000

116

(10.2)

35

(7.5)

77

(12.1)

29

(13.0)

  $25 000–$49 999

254

(22.4)

81

(17.4)

191

(30.1)

86

(38.6)

  $50 000–$74 999

117

(10.3)

61

(13.1)

89

(14.0)

40

(17.9)

  $75 000–$99 999

64

(5.7)

36

(7.7)

48

(7.6)

18

(8.1)

  ≥$100 000

57

(5.0)

33

(7.1)

40

(6.3)

10

(4.5)

  Not Documented

525

(46.3)

220

(47.2)

190

(29.9)

40

(17.9)

 Employment status

  Full time employed

62

(5.5)

30

(6.4)

37

(5.8)

9

(4.0)

  Part time employed

36

(3.2)

15

(3.2)

26

(4.1)

8

(3.6)

  Not workinga

617

(54.5)

251

(53.9)

458

(72.1)

192

(86.1)

  Not documented

418

(36.9)

170

(36.5)

114

(18.0)

14

(6.3)

Clinical characteristics

 Stroke risk, mean (SD)

  CHADS2

2.1

(1.3)

2.1

(1.4)

2.0

(1.3)

1.9

(1.3)

  CHA2DS2-VASc

3.7

(1.8)

3.6

(1.8)

3.5

(1.7)

3.5

(1.6)

 Medical conditions

  Congestive heart failure

291

(25.7)

136

(29.2)

148

(23.3)

40

(17.9)

  Hypertension

891

(78.6)

352

(75.5)

487

(76.7)

170

(76.2)

  Diabetes

327

(28.9)

117

(25.1)

175

(27.6)

61

(27.4)

  Prior stroke, transient ischemic attack, or systemic embolism

209

(18.5)

95

(20.4)

110

(17.3)

32

(14.3)

  Vascular disease

398

(35.1)

179

(38.4)

212

(33.4)

69

(30.9)

  1. Data on employment status, level of education and household income were obtained from the baseline questionnaire (paper or online), other data were obtained from the baseline case report form
  2. Abbreviations: CDS Clinical decision support, NSHA Nova Scotia Health Authority, SD Standard deviation
  3. aIncludes retired, unemployed or homemaker