Table 5.

Relationships of PCS and MCS scores with deployment status and health-related indicators of participants

Variable	PCS			MCS
	Mean ± SD	Levene	F/χ2(Z)	Mean ± SD	Levene	F/χ2(Z)
Past deployment status		0.65	F = 5.74*		0.32	F = 0.16
Deployment experience	49.24 ± 8.90			41.65 ± 11.58
No deployment experience	50.88 ± 9.31			41.32 ± 11.23
BMI(kg/m2)		0.63	F = 3.86*		0.26	F = 2.76*
< 18.5	49.11 ± 10.12			45.09 ± 10.81
18.5~ 23.9	50.99 ± 9.15			41.61 ± 11.08
24.0~ 27.9	50.10 ± 9.14			40.74 ± 11.58a
≥ 28.0	46.96 ± 9.99bc			39.40 ± 12.72a
Smoking		2.16	F = 2.84*		1.60	F = 2.96*
Smoked<20cigarettes/day	50.11 ± 9.40			41.85 ± 10.91
Smoked≥20cigarettes/day	46.86 ± 10.31			34.49 ± 10.61a
Never smoked	51.33 ± 8.70ab			41.26 ± 11.57b
Past smokers	49.37 ± 11.06			40.40 ± 12.40b
Drinking		2.70*	χ2 = 8.56*		0.78	F = 8.15**
Everyday or almost everyday	48.15 ± 10.29			35.05 ± 11.24
Frequent	49.46 ± 9.71			40.11 ± 11.30a
Occasional	50.80 ± 9.16			42.49 ± 11.03ab
Never	51.15 ± 8.67a			40.85 ± 11.53a
Binge drinking		2.78*	χ2 = 16.66**		2.60	F = 5.56**
Everyday or almost everyday	43.68 ± 11.27			32.31 ± 10.79
Frequent	48.79 ± 9.99a			39.29 ± 12.71a
Occasional	50.02 ± 9.23a			41.67 ± 10.67a
Never	51.40 ± 8.90abc			41.87 ± 11.31ab

Note: *p < 0.05, **p < 0.01; The ANOVA test was applied when variance homogeneity was satisfied (F-measure); non parametric rank test was applied when missing variance (Z-measure or Chi square value)

^aMean values were significantly different from those of the first group (p < 0.05)

^bMean values were significantly different from those of the second group (p < 0.05)

^cMean values were significantly different from those of the third group (p < 0.05)

everyday or almost everyday = 6–7 times/week; Frequent = 1–5 times/week; Occasional = 3 times or below/month