Table 2 Patient characteristics by year before and after implementation of the protocol

Sex, male

135 (64.9)

150 (66.1)

141 (63.8)

165 (62.0)

206 (65.8)

218 (64.7)

201 (65.9)

194 (67.1)

152 (70.7)

Age, years

60 (44–68 [18–91])

55 (37–66 [18–87])

62 (41–73 [20–94])

57 (43–70 [19–97])

57 (37–68 [18–93])

53 (34–69 [18–90])

56 (36–69 [18–102])

54 (36–67 [18–95])

57 (40–70 [18–93])

HEMS unit reaching the patient, minutes from emergency call

37 (23–52 [10–125]), n = 195

33 (24–48 [10–108], n = 221

33 (23–49) [10–191]), n = 220

35 (25–50 [11–102]), n = 263

35 (24–52 [6–160]), n = 311

32 (23–44 [10–158]), n = 336

35 (25–47 [10–142]), n = 302

33 (23–47 [10–202]), n = 289

28 (21–46 [5–133), n = 215

Patient categories

OHCA/post resuscitation

38 (18.3)

36 (15.9)

36 (16.3)

42 (15.8)

63 (20,.)

73 (21.7)

74 (24.3)

87 (30.1)

67 (31.2)

Trauma

41 (19.7)

54 (23.8)

52 (23.5)

72 (27.1)

76 (24.3)

56 (16.6)

66 (21.6)

58 (20.1)

50 (23.3)

Neurological

79 (38.0)

75 (33.0)

81 (36.7)

87 (32.7)

95 (30.4)

100 (29.7)

84 (27.5)

70 (24.2)

50 (23.3)

Intoxication

28 (13.5)

36 (15.9)

35 (15.8)

40 (15.0)

49 (15.7)

94 (27.9)

63 (20.7)

56 (19.4)

37 (17.2)

Other

22 (10.6)

26 (36.6)

17 (7.7)

25 (9.4)

30 (9.6)

14 (4.2)

18 (5.9)

18 (6.2)

11 (5.1)

Vital signs upon HEMS crew arrival to the patient

Heart rate (beats.min)

91 (70–118 [30–170]), n = 164

100 (76–120 [10–200]), n = 163

91 (75–110 [30–176]), n = 205

98 (79–114 [20–188]), n = 251

93 (76–114 [28–180]), n = 283

94 (73–113 [20–171]), n = 312

94 (76–113 [40–195]), n = 280

96 (75–116 [32–197]), n = 252

96 (76–120 [30–170]), n = 189

Systolic blood pressure (mmHg)

130 (110–160 [46–250]), n = 159

133 (112–162 [44–240]), n = 162

134 (113–171 [60–250]), n = 202

134 (114–166 [65–253]), n = 245

136 (115–166 [45–262]), n = 276

135 (112–161 [25–258]), n = 305

132 (109–155 [46–241]), n = 274

134 (114–162 [50–264]), n = 245

135 (112–162 [49–266]), n = 181

Oxygen saturation (%)

97 (92–100 [30–100]), n = 148

95 (91–99 [50–100]), n = 151

96 (91–99 [21–100]), n = 197

97 (93–98 [46–100]), n = 241

97 (92–99 [18–100]), n = 272

97 (94–99 [55–100]), n = 299

98 (95–99 [50–100]), n = 273

98 (94–100 [23–100)], n = 238

97 (93–99 [24–100]), n = 183

Glascow coma score

3 (3–5 [3–15]), n = 195

4 (3–7 [3–15]), n = 194

4 (3–6 [3–15]), n = 219

3 (3–6 [3–15]), n = 265

4 (3–7 [3–15]), n = 307

3 (3–6 [3–15]), n = 336

3 (3–6 [3–15]), n = 298

3 (3–6 [3–15]), n = 283

3 (3–6 [3–15]), n = 213