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Table 4 The change in reported symptoms from P1 to P3

From: The relationship between workers’ self-reported changes in health and their attitudes towards a workplace intervention: lessons from smoke-free legislation across the UK hospitality industry

 

Number (%) with symptoms

Change in Symptoms1

 

Baseline

Follow-up

No. Reduced

No. Increased

No. No Change

P-value2

England

Respiratory symptoms

N

%

N

%

    

Median # of symptoms (IQR)3

1

(0, 3)

0

(0,1)

27

3

20

0.007

Any symptom

31

(61)

19

(37)

15

3

33

0.041

Wheezing/whistling

18

(35)

5

(10)

14

1

36

0.001

Shortness of Breath

11

(22)

6

(12)

7

2

42

0.180

Cough, morning

21

(41)

7

(14)

15

1

35

0.001

Cough, rest of day or night

15

(29)

10

(20)

7

2

42

0.180

Phlegm production

16

(31)

7

(14)

11

2

37

0.022

Sensory symptoms

Median # of symptoms (IQR)

1

(0, 1)

0

(0,1)

22

10

18

0.037

Any symptom

28

(55)

16

(31)

20

8

23

0.041

Eyes, red or irritated

12

(24)

6

(12)

10

4

37

0.180

Nose, runny or sneezing

18

(35)

12

(24)

12

6

32

0.238

Throat, sore or scratchy

10

(20)

3

(6)

9

2

40

0.065

All symptoms

Median # of symptoms (IQR)

2

(1, 4)

1

(0,2)

30

6

13

<0.001

Any symptom

39

(76)

25

(49)

18

4

29

0.017

Scotland

Respiratory symptoms

Median # of symptoms (IQR)

2

(0, 3)

1

(0,2)

49

24

54

0.015

Any symptom

86

(67)

70

(54)

23

7

99

0.042

Wheezing/whistling

42

(33)

29

(22)

21

8

100

0.024

Shortness of Breath

43

(33)

28

(22)

27

12

88

0.024

Cough, morning

39

(30)

28

(22)

21

10

98

0.071

Cough, rest of day or night

54

(42)

43

(33)

27

16

86

0.126

Phlegm production

50

(39)

36

(28)

20

6

103

0.009

Sensory symptoms

Median # of symptoms (IQR)

1

(0, 2)

1

(0,2)

46

26

57

0.033

Any symptom

89

(69)

69

(53)

31

11

87

0.011

Eyes, red or irritated

43

(33)

24

(19)

25

6

98

0.001

Nose, runny or sneezing

60

(47)

61

(47)

23

24

82

1.000

Throat, sore or scratchy

54

(42)

39

(30)

31

16

82

0.040

All symptoms

Median # of symptoms (IQR)

2

(1, 5)

2

(0,4)

59

31

37

0.011

Any symptom

104

(81)

87

(67)

6

23

100

0.016

  1. The table shows only those who did not have a cold at either phase and is split into England (n = 51) and Scotland (n = 129).
  2. 1 Reduction – Symptoms at Baseline, none at follow-up: Increase No symptoms at baseline, symptoms at follow-up. For ‘median # of symptoms’ this is the number of people whose number of symptoms changed. For ‘any symptom’ this is the change in the number of people experiencing any symptom.
  3. 2 The p-value relates to the McNemar test for matched pairs, with exact probabilities based on a Binomial assumption with the exception of; Median number of symptoms which were tested using Mann–Whitney U test of equal medians.
  4. 3 The IQR is the inter-quartile range.
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BMC Public Health

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