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Table 2 The calibration of the cough analyser

From: A portable automatic cough analyser in the ambulatory assessment of cough

Nr

Nh

Nm

Automatic counting by the cough analyser

   

T d = 0.1s

A d = 10%

T d = 0.1s

A d = 20%

T d = 0.1s

A d = 40%

T d = 1 s

A d = 20%

T d = 1 s

A d = 10%

T d = 1 s

A d = 5%

   

N a

EC a-m (%)

N a

EC a-m (%)

N a

EC a-m

(%)

N a

EC a-m (%)

N a

EC a-m (%)

N a

EC a-m (%)

1

164

162

178

9.88

175

8.03

151

6.79

156

3.7

166

2.47

182

12.35

2

174

177

194

9.61

190

7.35

164

7.35

169

4.52

182

2.83

199

12.43

3

171

173

191

10.41

185

6.94

161

6.94

165

4.62

178

2.89

194

12.14

4

199

197

217

10.15

212

7.61

182

7.61

188

4.57

204

3.55

223

13.20

5

134

132

145

9.85

142

7.58

121

8.33

126

4.55

135

2.27

147

11.36

6

227

224

247

10.27

240

7.14

207

7.59

214

4.46

232

3.57

255

13.84

  1. Nr - number; Nh - number of incidents counted from hearing in real time;
  2. Nm - number of incidents counted manually the software MES Cough Analyser;
  3. Na - number of incidents automatically counted by cough analyser;
  4. ECa-m - counting error; Td - discrimination time; Ad - amplitude of discrimination.