Table 2.

Means and standard deviations of Saudi and Australian paramedics across age, BMI, working and driving durations per week. Statistical comparisons of the groups using independent samples t-tests with p value and effect size (Cohen’s d) are shown.

	Australian Paramedics M (SD)	Saudi Paramedics M (SD)	t (df), p, Cohen’s d.
Age (years)	44.1 (12.1)	32.5 (6.1)	t (180) = −8.43, p < 0.001, d = 1.22
BMI *	27.9 (4.3)	26.1 (5.1)	t (184) = −2.57, p < 0.05, d = 0.38
Working (hours/week)	45.4 (10.7)	48.3 (2.5)	t (170) = 2.57, p < 0.05, d = 0.37
Driving ** (hours/week)	17.9 (11.2)	26.2 (18.7)	t (170) = 3.49, p < 0.001, d = 0.54

Note: * (BMI) body mass index, ** Ambulance driving.