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Table 3 Comparison of PSS-10 and BRFSS before and after the intervention between the two groups

From: The effect of a smartphone-based coronary heart disease prevention (SBCHDP) programme on awareness and knowledge of CHD, stress, and cardiac-related lifestyle behaviours among the working population in Singapore: a pilot randomised controlled trial

Variables

Pre-test

p

Post-test

p

Intervention group (n = 40)

Control group (n = 40)

Intervention group (n = 40)

Control group (n = 40)

PSS-10 Mean (SD) a

17.0 (5.3)

15.7 (5.2)

0.281

16.1 (4.8)

16.2 (5.1)

0.911

BRFSS n (%) b

 General health (good)

35 (87.5%)

36 (90.0%)

0.645

35 (87.5%)

34 (85.0%)

0.879

 History of diabetes (yes)

2 (5.0%)

1 (2.5.0%)

0.210

3 (7.5%)

2 (5.0%)

0.635

 Medication (yes)

4 (10.0%)

5 (12.5%)

1.000

5(12.5%)

4 (10.0%)

0.723

 Overweight

14 (35.0%)

16 (40.0%)

0.288

13 (32.5%)

17 (42.5%)

0.314

 BP check (yes)

34 (85.0%)

34 (85.0%)

1.000

36 (90.0%)

36 (90.0%)

1.000

 High BP (yes)

3 (7.5%)

7 (17.5%)

0.311

1 (2.5%)

3 (7.5%)

0.305

 Exercise (yes)

25 (62.5%)

31 (77.5%)

0.222

24 (60.0%)

26 (65.0%)

0.644

 Cholesterol check (yes)

33 (82.5%)

35 (87.5%)

0.755

33 (82.5%)

36 (90.0%)

0.330

 High cholesterol (yes)

8 (24.2%)

14 (40.0%)

0.201

5 (15.2%)

14 (37.8%)

0.033*

 Smoking (yes)

7 (17.5%)

2 (5.0%)

0.154

6 (15.0%)

2 (5.0%)

0.146

 Alcohol drinking (yes)

11 (27.5%)

15 (37.5%)

0.557

13 (32.5%)

15(37.5%)

0.822

  1. a:Independent Sample t-test; b:Chi-square test; BP blood pressure; * Significance p < 0.05