Table 5 Systolic function parameters of the study population (firefighters, police officers, and office workers).

From: Structural and functional cardiac parameters across occupations: a cross-sectional study in differing work environments

Variables

Firefighters

(FFs)

(n = 97)

Police officers (POs)

(n = 55)

Office workers (OWs)

(n = 46)

Linear regression

Estimated difference [95%-CI], p-value

(adjusted for age)

Mean ± SD

Mean ± SD

Mean ± SD

OWs vs. FFs

POs vs. FFs

POs vs. OWs

% FS

33.4 ± 4.9

33.1 ± 6.4

31.7 ± 3.8

−1.46 (−2.99–0.07)

p = 0.061

−0.14 (−2.14–1.85)

p = 0.886

1.31 (−0.77–3.40)

p = 0.214

SV MOD A4C (ml)

67.9 ± 19.4

62.2 ± 16.9

63.7 ± 16.4

−4.59 (−11.11–1.92)

p = 0.166

−5.24 (−11.57–1.09)

p = 0.104

−1.52 (−8.25–5.21)

p = 0.655

LVEF (%)

62.8 ± 6.6

62.5 ± 6.8

63.0 ± 5.7

0.31 (−1.96–2.58)

p = 0.787

−0.04 (−2.40–2.31)

p = 0.970

−0.49 (−2.98–2.00)

p = 0.696

LVEDV MOD BP (ml)

106.2 ± 23.6

94.2 ± 19.7

98.2 ± 23.8

−5.10 (−13.58–3.37)

p = 0.236

−8.29 (−15.12–1.47)

p = 0.018

−4.06 (−12.92–4.80)

p = 0.365

LVESV MOD BP (ml)

39.4 ± 10.9

35.4 ± 9.9

36.6 ± 11.3

−1.99 (−6.18–2.20)

p = 0.350

−3.09 (−6.62–0.44)

p = 0.085

−1.21 (−5.54–3.11)

p = 0.579

LV Mass (ASE) (g)

211.5 ± 45.3

232.7 ± 60.5

212.1 ± 39.1

−1.44 (−15.51–12.63)

p = 0.840

19.67 (1.04–38.29)

p = 0.039

21.37 (1.72–41.02)

p = 0.033

LV Mass (ASE) (g/m2)

101.4 ± 18.6

107.0 ± 25.3

101.8 ± 18.8

−0.08 (−6.53–6.36)

p = 0.980

5.43 (−2.30–13.16)

p = 0.167

5.52 (−3.16–14.20)

p = 0.210