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Table 1 Survey Participants Demographics and Injury Severity

From: Patient and surrogate attitudes via an interviewer-administered survey on exception from informed consent enrollment in the Prehospital Air Medical Plasma (PAMPer) trial

  All Respondents (N = 93) Patient
Group
(N = 36)
Surrogate Group
(N = 57)
P-value
Male sex—no. (%) 34 (36.6) 22 (61.1) 12 (21.1) < 0.001
Race—no. (%)
Not reported 3 (3.2) 1 (2.8) 2 (3.5) 0.827
Asian 2 (2.2) 1 (2.8) 1 (1.8)  
Black 1 (1.1) 0 (0.0) 1 (1.8)  
Hispanic 2 (2.2) 0 (0.0) 2 (3.5)  
Multicultural 3 (3.2) 1 (2.8) 2 (3.5)  
White 82 (88.2) 33 (91.7) 49 (86.0)  
Median age (IQR)—years 52 (39–61) 50 (33–57) 54 (43–61) 0.101
Median hospital length of stay (IQR)—days 20 (8–30) 21 (7.8–31) 19.5 (8–29.3) 0.830
Median length of mechanical ventilation (IQR)—days 5 (1–13.8) 4.5 (0–12.3) 6.5 (1.8–15) 0.324
Median Injury Severity Score (IQR) 22 (13–33) 20.5 (12–33.3) 22 (13–30.8) 0.916
Injury caused by blunt trauma—no. (%) 77 (91.7) 31 (91.2) 46 (92.0) 0.893
Prehospital intubation—no. (%) 25 (29.8) 5 (14.7) 20 (40.0) 0.013
Procedures in 1st 24 h—no. (%) 59 (70.2) 24 (70.6) 35 (70.0) 0.954
Transported from scene of injury—no. (%) 64 (76.2) 25 (73.5) 39 (78.0) 0.637
Median time between interview and enrollment (IQR)—years 3.5 (2.3–4.0) 3.24 (2.2–3.9) 3.5 (2.3–4.1) 0.636
Education level —no. (%)
Not reported 3 (3.2) 1 (2.8) 2 (3.5) 0.479
Less than high school 1 (1.1) 1 (2.8) 0 (0.0)  
Some high school 2 (2.2) 1 (2.8) 1 (1.8)  
High school graduate 27 (29.0) 8 (22.2) 19 (33.3)  
Technical college 1 (1.1) 0 (0.0) 1 (1.8)  
Some college 25 (26.9) 11 (30.6) 14 (24.6)  
College graduate 22 (23.7) 7 (19.4) 15 (26.3)  
Some postgraduate 1 (1.1) 0 (0.0) 1 (1.8)  
Postgraduate 11 (11.8) 7 (19.4) 4 (7.0)  
Employment status—no. (%)
Not reported 3 (3.2) 1 (2.8) 2 (3.5) < 0.001
Disabled 12 (12.9) 10 (27.8) 2 (3.5)  
Employed full-time 46 (49.5) 11 (30.6) 35 (61.4)  
Employed part-time 6 (6.5) 1 (2.8) 5 (8.8)  
Employed part-time, student 1 (1.1) 1 (2.8) 0 (0.0)  
Not employed 4 (4.3) 4 (11.1) 0 (0.0)  
Retired 18 (19.4) 5 (13.9) 13 (22.8)  
Seasonal 1 (1.1) 1 (2.8) 0 (0.0)  
Student 2 (2.2) 2 (5.6) 0 (0.0)  
Annual family income (before taxes) —no. (%)
Not reported 6 (6.5) 4 (11.1) 2 (3.5) 0.031
<$5000 7 (7.5) 2 (5.6) 5 (8.8)  
$5000–$19,999 6 (6.5) 6 (16.7) 0 (0.0)  
$20,000–$39,999 23 (24.7) 9 (25.0) 14 (24.6)  
$40,000–$59,999 12 (12.9) 3 (8.3) 9 (15.8)  
$60,000–$79,999 11 (11.8) 3 (8.3) 8 (14.0)  
>$80,000 28 (30.1) 9 (25.0) 19 (33.3)  
Medical insurance coverage—no. (%) 89 (95.7) 35 (97.2) 54 (94.7) 0.711
Previous medical research involvement—no. (%) 14 (15.1) 8 (22.2) 6 (10.5) 0.124
Previous refusal of medical research involvement—no. (%) 6 (6.5) 1 (2.8) 5 (8.8) 0.252