Table 3 Multiple linear regression outputs examining the adjusted associations between mission complexity and task load.

Mission complexity (ref = EMT-1 mission)

 EMT-2 mission

3.91

(-4.08, 11.90)

25.33

(-19.47, 70.13)

10.51

(-1.42, 22.44)

8.46

(-3.12, 20.05)

0.94

(-10.70, 12.57)

-7.66

(-17.58, 2.27)

13.47*

(1.48, 25.46)

-0.40

(-12.05, 11.26)

 EMT-P and/or CPR mission

14.04**

(5.01, 23.07)

73.09**

(22.45, 123.74)

14.96*

(1.47, 28.44)

9.79

(-3.31, 22.89)

10.65

(-2.50, 23.80)

5.93

(-5.29, 17.15)

15.59*

(2.03, 29.15)

16.18*

(3.00, 29.36)

Female EMT (ref = male)

-0.42

(-9.65, 8.80)

-7.16

(-58.89, 44.58)

1.26

(-12.51, 15.04)

1.80

(-11.59, 15.18)

-3.10

(-16.53, 10.34)

-3.42

(-14.88, 8.04)

-2.21

(-16.06, 11.64)

-1.49

(-14.96, 11.97)

EMT’s age

0.22

(-0.25, 0.69)

1.91

(-0.73, 4.55)

-0.11

(-0.82, 0.59)

0.40

(-0.28, 1.08)

0.13

(-0.55, 0.82)

0.49

(-0.10, 1.07)

0.43

(-0.28, 1.14)

0.58

(-0.11, 1.26)

Job tenure > 10 years (ref = ≤ 10 years)

2.40

(-3.79, 8.59)

13.21

(-21.51, 47.92)

9.64*

(0.40, 18.88)

1.79

(-7.19, 10.77)

5.26

(-3.75, 14.28)

-7.45

(-15.15, 0.24)

6.62

(-2.67, 15.91)

-2.65

(-11.68, 6.38)

Daily responses to EMS calls

0.59

(-0.26, 1.45)

2.46

(-2.36, 7.27)

0.61

(-0.67, 1.89)

1.00

(-0.25, 2.24)

0.11

(-1.15, 1.36)

-0.30

(-1.37, 0.76)

0.44

(-0.85, 1.73)

0.61

(-0.65, 1.86)

Weekly workdays on EMS shifts

2.30^*

(0.50, 4.10)

9.58

(-0.50, 19.67)

1.91

(-0.78, 4.59)

1.99

(-0.62, 4.60)

1.63

(-0.99, 4.24)

1.07

(-1.17, 3.30)

1.87

(-0.83, 4.57)

1.12

(-1.50, 3.75)

Female patient (ref = male)

-0.37

(-4.77, 4.04)

-2.19

(-26.89, 22.51)

-1.41

(-7.99, 5.16)

-0.80

(-7.18, 5.59)

-3.63

(-10.04, 2.79)

-1.39

(-6.86, 4.08)

0.88

(-5.73, 7.50)

4.15

(-2.28, 10.58)

Patient’s age

0.14^*

(0.02, 0.25)

0.74*

(0.09, 1.38)

0.11

(-0.06, 0.28)

0.16

(-0.01, 0.32)

0.21*

(0.04, 0.37)

0.07

(-0.07, 0.21

0.13

(-0.05, 0.30)

0.06

(-0.10, 0.23)

Number of provided procedures

0.93

(-0.23, 2.09)

6.83*

(0.32, 13.35)

1.80*

(0.06, 3.53)

2.05*

(0.37, 3.74)

1.69

(0.003, 3.39)

-0.73

(-2.18, 0.71)

1.77*

(0.02, 3.51)

0.26

(-1.44, 1.95)

Total time of the call > 1 h

(ref = ≤ 1 h)

3.43

(-0.03, 6.88)

21.45*

(2.06, 40.84)

2.26

(-2.91, 7.42)

2.19

(-2.83, 7.20)

8.18**

(3.15, 13.22)

0.38

(-3.91, 4.68)

3.48

(-1.71, 8.67)

4.96

(-0.09, 10.00)

Date of the call (ref = yesterday)

 2 or 3 days before

-4.93

(-14.17, 4.31)

-14.97

(-66.80, 36.86)

-1.36

(-15.16, 12.44)

-7.39

(-20.80, 6.01)

-14.77*

(-28.23, -1.31)

6.52

(-4.96, 18.01)

-1.67

(-15.55, 12.20)

3.70

(-9.78, 17.19)

 4 or 5 days before

-4.70

(-13.89, 4.49)

-15.18

(-66.70, 36.34)

-1.71

(-15.42, 12.01)

-6.13

(-19.45, 7.20)

-16.63*

(-30.01, -3.25)

3.52

(-7.90, 14.93)

-0.53

(-14.32, 13.26)

6.30

(-7.11, 19.70)

 > 1 week before

-7.42

(-17.91, 3.07)

-24.33

(-83.17, 34.51)

-4.85

(-20.52, 10.81)

-8.51

(-23.73, 6.71)

-16.69*

(-31.97, -1.41)

2.67

(-10.37, 15.71)

-1.70

(-17.46, 14.05)

4.76

(-10.55, 20.07)