Table 1.
Characteristics of children with trauma in the PHIS and NTDB datasets
| PHIS N = 156,357 n (col%) |
NTDB N = 104,049 n (col%) |
X2 P | |
|---|---|---|---|
| Age | < 0.001 | ||
|
| |||
| 0 to 364 days | 20,040 (13) | 12,931 (12) | |
|
| |||
| 1 to <5 years | 43,522 (28) | 25,315 (24) | |
|
| |||
| 5 to <13 years | 57,113 (37) | 42,594 (41) | |
|
| |||
| 13 to <18 years | 35,682 (23) | 23,209 (22) | |
|
| |||
| Gender | |||
|
| |||
| Male | 97,314 (62) | 66,682 (64) | < 0.001a |
|
| |||
| Missing | 62 (0) | 17 (0) | |
|
| |||
| Admission Year | < 0.001b | ||
|
| |||
| 2005–2006 | 309 (0) | 0 (0) | |
|
| |||
| 2007 | 31,406 (20) | 18,528 (18) | |
|
| |||
| 2008 | 40,115 (26) | 28,014 (27) | |
|
| |||
| 2009 | 42,421 (27) | 28,149 (27) | |
|
| |||
| 2010 | 42,106 (27) | 29,358 (28) | |
|
| |||
| Injury Mechanism | < 0.001a | ||
|
| |||
| Fall | 42,144 (27) | 45,793 (44) | |
|
| |||
| Assault/Abuse | 8,630 (6) | 6,876 (7) | |
|
| |||
| Motor vehicle | 14,849 (10) | 15,721 (15) | |
|
| |||
| Other | 66,936 (43) | 35,534 (34) | |
|
| |||
| No E-code (Missing) | 23,798 (15) | 125 (0) | |
|
| |||
| Injury Severity Score | < 0.001 | ||
|
| |||
| < 15 | 145,443 (93) | 93,140 (90) | |
|
| |||
| ≥ 15 | 10,914 (7) | 10,909 (10) | |
|
| |||
| Hospital Course | |||
|
| |||
| ICU admission | 22,871 (15) | 14,953 (14) | 0.07 |
| Length of stay, median (IQR) | 1 (1–3) | 2 (1–3) | < 0.001c |
|
| |||
| Hospital Outcome | |||
|
| |||
| Mortality | 1,487 (1) | 949 (1) | 0.37a |
| Missing | 5,439d (3) | 11,212 (11) | |
col%, column percentage; ICU, Intensive Care Unit; IQR, Interquartile range; NTDB, National Trauma Data Bank; PHIS, Pediatric Health Information Systems database
Column percentages may not add to 100% because of rounding.
a
missing values excluded
b
P-value unchanged if 2005–2006 excluded
c
Wilcoxon rank-sum test
d
5,254 of these (97%) are from three hospitals with known missing disposition data