Table 2 Means and standard deviations of each continuous individual variable in CMS and non-CMS subjects in 2009 and 2010

Age (years)

CMS

23.45 (3.73)^*

23.31 (3.57)^*

Non-CMS

22.51 (2.95)

22.61 (3.46)

Body mass index (kg/m ² )

CMS

21.69 (2.56)

21.56 (2.78)

Non-CMS

21.42 (2.65)

21.48 (2.51)

Highland service years

CMS

4.24 (3.33)^*

4.10 (3.24)^*

Non-CMS

3.44 (2.66)

3.53 (2.98)

Systolic blood pressure (mmHg)

CMS

120.98 (11.47)^*

121.77 (10.74)^*

Non-CMS

116.96 (10.27)

118.41 (9.45)

Diastolic blood pressure (mmHg)

CMS

77.31 (11.32)^*

78.30 (12.67)^*

Non-CMS

75.07 (7.65)

73.80 (7.78)

Heart rate (beat/min)

CMS

81.17 (10.74)^*

80.06 (8.53)^*

Non-CMS

76.63 (8.13)

77.07 (8.02)

Hemoglobin (g/L)

CMS

216.68 (5.62)^*

216.10 (5.74)^*

Non-CMS

191.05 (12.69)

190.94 (13.54)

Oxygen saturation (%)

CMS

82.45 (2.69)^*

81.69 (2.41)^*

Non-CMS

88.85 (3.43)

89.01 (3.50)