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Table 2 Frequency of reporting symptoms of respiratory tract infection last week by characteristics of 6414 middle-aged and elderly adults taking part in the Tromsø 6 survey

From: Symptoms of respiratory tract infection and associated care-seeking in subjects with and without obstructive lung disease; The Tromsø Study: Tromsø 6

 

Symptoms of RTI last week

Days since start of symptoms

Symptoms of RTI last week that started within the previous 7 days

 

n

%

p-value

median

p-value

n

%

p-value

All (n = 6414)

798

12

 

8

 

340

5.3

 

Gender

 Male (n = 2754)

350

13

0.6

8

0.6

149

5.4

0.7

 Female (n = 3660)

448

12

 

8

 

191

5.2

 

Age

 <55 years (n = 1059)

141

13

0.001#

7

0.03£

79

7.5

<0.001#

 55-64 years (n = 2656)

354

13

 

9

 

138

5.2

 

 65-74 years (n = 1752)

230

13

 

9

 

217

5.5

 

 ≥ 75 Years (n = 947)

947

8

 

14

 

123

2.7

 

Smoking (n = 6323)

 Current (n = 1158)

214

19

<0.001#

11

0.01£

76

6.6

0.7

 Previous (n = 2955)

334

11

 

8

 

132

4.5

 

 Never (n = 2210)

240

11

 

7

 

126

5.7

 

Season

 Winter (November-April) (n = 3128)

425

14

0.007

9

0.2

175

5.6

0.3

 Summer (May-October) (n = 3286)

373

11

 

8

 

165

5.0

 

Self-reported disease &

 Asthma, not COPD (n = 457)

69

15

0.07

11

0.5

28

6.1

0.4

 COPD, not asthma (n = 172)

25

15

0.4

14

0.09

6

3.5

0.3

 Both asthma and COPD (n = 141)

22

16

0.3

12

0.5

9

6.4

0.6

 Neither asthma nor COPD (n = 5578)

679

12

0.09

8

0.1

296

5.3

1.0

 Cardiovascular disease (n = 1154)

134

12

0.3

12

0.02

47

4.1

0.04

Self-rated health (n = 6353)

 Good/exellent (n = 3949)

449

11

0.001#

8

0.01£

207

5.2

0.9

 Neither good nor bad (n = 2057)

288

14

 

10

 

109

5.3

 

 Bad/very bad (n = 347)

53

15

 

14

 

19

5.5

 

Lung function (n = 6305)

 Normal/restrictive (n = 4881)

567

12

<0.001#

8

<0.001£

267

5.5

0.2#

 GOLD 1 (n = 643)

80

12

 

11

 

26

4.0

 

 GOLD 2–4 (n = 781)

134

17

 

13

 

31

4.6

 

Self-reported asthma or COPD and lung function combined (n = 6305) &

 Asthma or COPD not reported, FEV1/FVC ≥ 0.7 (n = 4436)

511

12

0.001

8

0.009

235

5.3

0.7

 Asthma or COPD reported, FEV1/FVC ≥ 0.7 (n = 445)

56

13

0.9

7

0.09

32

7.2

0.05

 Asthma or COPD reported, FEV1/FVC <0.7 (n = 380)

61

16

0.03

14

<0.001

11

2.9

0.04

 Asthma or COPD not reported but GOLD 1 spirometry (n = 559)

69

12

1.0

9

0.9

25

4.5

0.4

 but GOLD 2–4 spirometry (n = 485)

84

17

0.001

12

0.04

26

5.4

0.9

  1. #Chi-square linear trend.
  2. &Subject with and without the condition are compared.
  3. £ Jonckheere-Terpstra test.