Table 4 Proportions (%) of patients with each variable among the patients with and without each secondary outcome. I.e. 7.1% of patients requiring PICU admission and 1.0% of patients not requiring PICU admission had a previous EMS contact. Comparisons between the proportions with and without were made using Fisher’s test

% of all (N = 28) patients with PICU admissions

7.1%

3.6%

25.0%

35.7%

14.3%

% of all (N = 1682) patients without PICU admission

1.0%

15.0%

29.2%

15.7%

6.3%

P = 0.04

P = 0.11

P = 0.83

P = 0.01

P = 0.10

% of all (N = 91) patients with medical state other than good upon arrival at ED

0.0%

4.4%

20.9%

25.3%

19.8%

% of all (N = 1619) patients with medical state good upon arrival at ED or ED care not required

1.2%

15.7%

29.5%

5.4%

5.7%

P = 0.62

P < 0.01

P = 0.10

P = 0.02

P < 0.01

% of all (N = 386) patientsc with any medication or respiratory support given at ED

2.1%

8.5%

29.4%

17.4%

11.1%

% of all (N = 1324) patients without any medication or respiratory support given at ED

0.8%

16.6%

29.1%

15.6%

16.1%

P = 0.05

P < 0.01

P = 0.90

P = 0.43

P = 0.75

% of all (N = 336) patients with hospitalization^c

2.1%

9.5%

26.3%

22.9%

11.0%

% of all (N = 1363) patients without hospitalization^c

0.9%

16.1%

29.9%

14.3%

5.4%

P = 0.08

P < 0.01

P = 0.20

P < 0.01

P < 0.01

% of all (N = 18) patients with surgical procedures^d

during the same visit^d

0.0%

22.2%

11.1%

11.1%

11.1%

% of all (N = 1692) patients without surgical procedures^d

during the same visit^d

1.1%

14.7

29.4%

16.1%

6.4%

P < 0.05

P = 0.32

P = 0.12

P = 0.75

P = 0.33