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Table 2 Age- adjusted relationships between time-sensitive diagnosis and sex, previous history, time intervals, and clinical observations on arrival of PENs, as well as age itself, among unique patients with a final diagnosis

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

  

Time-sensitive diagnosis

  

All patients

(n = 3794)a

Yes

(n = 487)

No

(n = 3307)

Age adjusted

p

OR (95% CI)

Age

79 (53,91)

80 (61,91)

79 (52,91)

0.02

 

  < =65

753 (19.8)

72 (14.8)

681 (20.6)

 

1

 66–80

1327 (35.0)

183 (37.6)

1144 (34.6)

 

1.51 (1.13,2.02)

  > 80

1714 (45.2)

232 (47.6)

1482 (44.8)

 

1.48 (1.12,1.96)

Male sex

1746 (46.0)

239 (49.1)

1507 (45.6)

0.11

1.17 (0.96,1.41)

Dyspnoea (319)*

2867 (82.5)

324 (76.2)

2543 (83.4)

< 0.0001

0.58 (0.46,0.75)

Ischemic heart disease (21)

1017 (27.0)

149 (30.7)

868 (26.4)

0.16

1.17 (0.94,1.44)

Heart failure (19)

1163 (30.8)

159 (32.7)

1004 (30.5)

0.78

1.03 (0.84,1.27)

Hypertension

1905 (50.2)

280 (57.5)

1625 (49.1)

0.007

1.32 (1.08,1.61)

Diabetes

796 (21.0)

130 (26.7)

666 (20.1)

0.002

1.41 (1.13,1.76)

Atrial fibrillation (1)

1168 (30.8)

116 (23.8)

1052 (31.8)

< 0.0001

0.59 (0.47,0.75)

Pulmonary disease (72)

1537 (41.3)

127 (26.5)

1410 (43.5)

< 0.0001

0.45 (0.36,0.56)

Renal disease (1)

465 (12.3)

79 (16.2)

386 (11.7)

0.01

1.40 (1.08,1.83)

System disease (4)

270 (7.1)

30 (6.2)

240 (7.3)

0.32

0.82 (0.55,1.22)

Cancer (8)

767 (20.3)

88 (18.1)

679 (20.6)

0.09

0.80 (0.63,1.03)

Psychiatric disorder (11)

615 (16.3)

62 (12.8)

553 (16.8)

0.06

0.76 (0.58,1.02)

Pain (178)

913 (25.2)

127 (28.4)

786 (24.8)

0.06

1.24 (0.99,1.55)

Syncope (18)

53 (1.4)

15 (3.1)

38 (1.2)

0.0005

2.95 (1.60,5.42)

Respiratory rate < 8 or > 25 (breaths/min)(81)

2020 (54.4)

345 (72.3)

1675 (51.8)

< 0.0001

2.38 (1.92,2.95)

Oxygen saturation < 90 (%) (74)

1446 (38.9)

282 (59.5)

1164 (35.9)

< 0.0001

2.56 (2.10,3.13)

Systolic blood pressure < 90 (mmHg)(133)

84 (2.3)

25 (5.4)

59 (1.8)

< 0.0001

3.03 (1.87,4.89)

Heart rate < 40 or > 120 (beats/min)(80)

488 (13.1)

116 (24.6)

372 (11.5)

< 0.0001

2.59 (2.04,3.28)

Body temperature < 35.0 or > 41.0 (°C)(129)

23 (0.6)

8 (1.8)

15 (0.5)

0.002

3.95 (1.66,9.42)

Degree of consciousness (RLS) > 2 (694)

67 (2.2)

31 (8.1)

36 (1.3)

< 0.0001

6.55 (3.99,10.74)

Pathological ECG (284)

1110 (31.6)

243 (52.6)

867 (28.4)

< 0.0001

2.76 (2.26,3.37)

Time from symptom onset to call (193)

58 (1340)

27 (0,223)

62 (1341)

< 0.0001

 

  < =12 h

1076 (29.9)

185 (41.1)

891 (28.3)

 

1

 12–24 h

179 (5.0)

22 (4.9)

157 (5.0)

 

0.66 (0.41,1.06)

 24–48 h

320 (8.9)

36 (8.0)

284 (9.0)

 

0.60 (0.41,0.88)

 48–72 h

391 (10.9)

54 (12.0)

337 (10.7)

 

0.75 (0.54,1.04)

  > 72 h

1635 (45.4)

153 (34.0)

1482 (47.0)

 

0.49 (0.39,0.61)

Time from call to PENs arrival (51)

18 (9,51)

15 (8,43)

18 (9.51)

< 0.0001

 

 0–6 min

90 (2.4)

18 (3.8)

72 (2.2)

 

1

 7–12 min

929 (24.8)

155 (32.5)

774 (23.7)

 

0.79 (0.46,1.36)

 13–24 min

1527 (40.8)

176 (36.9)

1351 (41.4)

 

0.51 (0.30,0.88)

  > 24 min

1197 (32.0)

128 (26.8)

1069 (32.7)

 

0.47 (0.27,0.81)

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