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Table 1 Demographics of responders and non-responders in an observational research bronchoscopy study

From: Motivation and response rates in bronchoscopy studies

Variable

Responders

n = 235

Non-responders

p-*

p**

Initial, n = 139

Late, n = 88

Age (SD)

66.9 (7.6)

67.9 (8.0)

67.4 (7.5)

0.3

0.6

Sex

0.01

0.5

 Women (%)

42.6

56.1

51.1

  

 Men (%)

57.4

43.9

48.9

  

Study category

0.2

0.06

 Controls (%)

43.0

41.7

29.6

  

 Obstructive lung disease (%)

57.0

58.3

70.4

  
  1. *Difference between responders and all non-responders
  2. **Difference between initial and late non-responders