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Table 4 Age- adjusted relationships between 30- day mortality and sex, previous history, time intervals, and clinical observations on arrival of PENs among unique patients

From: Pre-hospital predictors of an adverse outcome among patients with dyspnoea as the main symptom assessed by pre-hospital emergency nurses - a retrospective observational study

  

Dead within 30 days

  

All patients

(n = 4587)a

Yes

(n = 500)

No

(n = 4087)

Age adjusted

p

OR (95% CI)

Age

77 (43,91)

83 (68,93)

76 (39,90)

< 0.0001

 

  < =65

1197 (26.1)

38 (7.6)

1159 (28.4)

 

1

 66–80

1505 (32.8)

170 (34.0)

1335 (32.7)

 

3.88 (2.71,5.57)

  > 80

1885 (41.1)

292 (58.4)

1593 (39.0)

 

5.59 (3.95,7.90)

Male sex

2051 (44.7)

252 (50.4)

1799 (44.0)

0.002

1.36 (1.12,1.64)

Dyspnoea (418)*

3302 (79.2)

371 (83.4)

2931 (78.7)

0.96

0.99 (0.76,1.30)

Ischemic heart disease (21)

1140 (25.0)

131 (26.3)

1009 (24.8)

0.07

0.82 (0.66,1.02)

Heart failure (31)

1262 (27.7)

182 (36.7)

1080 (26.6)

0.16

1.16 (0.94,1.41)

Hypertension (8)

2114 (46.2)

256 (51.2)

1858 (45.6)

0.15

0.87 (0.71,1.05)

Diabetes (12)

878 (19.2)

106 (21.2)

772 (18.9)

0.76

1.04 (0.82,1.31)

Atrial fibrillation (13)

1277 (27.9)

175 (35.1)

1102 (27.0)

0.92

1.01 (0.82,1.24)

Pulmonary disease (89)

1789 (39.8)

169 (34.2)

1620 (40.5)

0.004

0.74 (0.61,0.91)

Renal disease (12)

499 (10.9)

83 (16.6)

416 (10.2)

0.006

1.44 (1.11,1.87)

System disease (15)

307 (6.7)

40 (8.0)

267 (6.6)

0.55

1.11 (0.78,1.58)

Cancer (17)

863 (18.9)

149 (29.9)

714 (17.5)

< 0.0001

1.67 (1.35,2.07)

Psychiatric disorder (30)

828 (18.2)

74 (14.8)

754 (18.6)

0.84

0.97 (0.75,1.27)

Pain (206)

1098 (25.1)

89 (19.6)

1009 (25.7)

0.05

0.78 (0.61,0.99)

Syncope (19)

63 (1.4)

9 (1.8)

54 (1.3)

0.20

1.62 (0.78,3.36)

Respiratory rate < 8 or > 25(breaths/min)(105)

2104 (46.9)

332 (67.9)

1772 (44.4)

< 0.0001

2.19 (1.78,2.68)

Oxygen saturation < 90 (%) (90)

1485 (33.0)

296 (60.3)

1189 (29.7)

< 0.0001

3.06 (2.52,3.73)

Systolic blood pressure < 90 (mmHg) (178)

90 (2.0)

37 (7.8)

53 (1.3)

< 0.0001

6.45 (4.12,10.10)

Heart rate < 40 or > 120 (beats/min) (95)

517 (11.5)

84 (17.1)

433 (10.8)

< 0.0001

1.80 (1.39,2.34)

Body temperature < 35.0 or > 41.0 (°C) (187)

24 (0.5)

10 (2.1)

14 (0.4)

< 0.0001

6.38 (2.70,15.04)

Degree of consciousness (RLS) > 2 (816)

70 (1.9)

27 (7.2)

43 (1.3)

< 0.0001

5.56 (3.35,9.23)

Pathological ECG (690)

1153 (29.6)

173 (38.1)

980 (28.5)

0.002

1.38 (1.13,1.70)

Time from symptom to call (332)

51 (0,339)

50 (0,318)

51 (0,340)

0.41

 

  < =12 h

1470 (34.5)

163 (34.8)

1307 (34.5)

 

1

 12–24 h

210 (4.9)

20 (4.3)

190 (5.0)

 

0.79 (0.48,1.30)

 24–48 h

357 (8.4)

37 (7.9)

320 (8.5)

 

0.86 (0.59,1.26)

 48–72 h

420 (9.9)

50 (10.7)

370 (9.8)

 

0.94 (0.67,1.33)

  > 72 h

1798 (42.3)

199 (42.4)

1599 (42.2)

 

0.89 (0.71,1.12)

Time from call to EMS arrival (58)

18 (9,50)

16 (8,44)

18 (9,51)

0.02

 

 0–6 min

100 (2.2)

16 (3.2)

84 (2.1)

 

1

 7–12 min

1110 (24.5)

135 (27.2)

975 (24.2)

 

0.69 (0.39,1.23)

 13–24 min

1853 (40.9)

198 (39.8)

1655 (41.0)

 

0.59 (0.33,1.04)

  > 24 min

1466 (32.4)

148 (29.8)

1318 (32.7)

 

0.55 (0.31,0.98)

  1. median (10th,90th percentile) or number (percent); * number missing
  2. a Unique patients, randomly selected occasions included