Table 2
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Details and correlation analyses of stress while driving and stress in daily life.

  Median (25th-75th percentile)Correlation coefficient with STAI  b
Stress while driving (α = .763  a)
Delay2 (1–2)0.18**
Family matters2 (1–2)0.22**
Being overtaken1 (1–2)0.15**
Weather and traffic jams2 (1–2)0.18**
Accidents2 (2–3)0.17**
Dozing1 (1–1)0.18**
Others1 (1–1)0.36
Stress in daily life (α = .865  a)
Financial1 (0–5)0.17**
Partner0 (0–3)0.10
Relationships2 (0–5)0.28**
Health3 (0–5)0.23**
Others2 (0–5)0.24**
  Median (25th-75th percentile)Correlation coefficient with STAI  b
Stress while driving (α = .763  a)
Delay2 (1–2)0.18**
Family matters2 (1–2)0.22**
Being overtaken1 (1–2)0.15**
Weather and traffic jams2 (1–2)0.18**
Accidents2 (2–3)0.17**
Dozing1 (1–1)0.18**
Others1 (1–1)0.36
Stress in daily life (α = .865  a)
Financial1 (0–5)0.17**
Partner0 (0–3)0.10
Relationships2 (0–5)0.28**
Health3 (0–5)0.23**
Others2 (0–5)0.24**

Abbreviation: STAI, State-Trait Anxiety Inventory.

a

Values of Cronbach alpha within the items for each stress category.

b

*P<.05, **P<.01.

Table 2
Open in new tab

Details and correlation analyses of stress while driving and stress in daily life.

  Median (25th-75th percentile)Correlation coefficient with STAI  b
Stress while driving (α = .763  a)
Delay2 (1–2)0.18**
Family matters2 (1–2)0.22**
Being overtaken1 (1–2)0.15**
Weather and traffic jams2 (1–2)0.18**
Accidents2 (2–3)0.17**
Dozing1 (1–1)0.18**
Others1 (1–1)0.36
Stress in daily life (α = .865  a)
Financial1 (0–5)0.17**
Partner0 (0–3)0.10
Relationships2 (0–5)0.28**
Health3 (0–5)0.23**
Others2 (0–5)0.24**
  Median (25th-75th percentile)Correlation coefficient with STAI  b
Stress while driving (α = .763  a)
Delay2 (1–2)0.18**
Family matters2 (1–2)0.22**
Being overtaken1 (1–2)0.15**
Weather and traffic jams2 (1–2)0.18**
Accidents2 (2–3)0.17**
Dozing1 (1–1)0.18**
Others1 (1–1)0.36
Stress in daily life (α = .865  a)
Financial1 (0–5)0.17**
Partner0 (0–3)0.10
Relationships2 (0–5)0.28**
Health3 (0–5)0.23**
Others2 (0–5)0.24**

Abbreviation: STAI, State-Trait Anxiety Inventory.

a

Values of Cronbach alpha within the items for each stress category.

b

*P<.05, **P<.01.

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