Table 4.
Frequencies and average length of stay among the population in the seismic crater in 6–9 April 2009 and in the overall Abruzzo region admitted to hospital due to injuries in 2010–2016. (ICD-9-CM, Injury Chapters).
| Hospitalizations by Principal Diagnosis from 6 to 9 April | From 6 to 9 April 2009 | From 2010 to 2016 | |||
|---|---|---|---|---|---|
| Total (%) | Average Length of Stay | Total (%) | Average Length of Stay | p-Value | |
| Fractures (800–829) | 80 (46.8%) | 12.8 | 49,981(45.6%) | 9.9 | 0.08 (.) |
| Internal injury of thorax, abdomen, and pelvis (860–869) | 25 (14.6%) | 12.1 | 21,521 (19.7%) | 10.1 | n.s. |
| Intracranial injury, excluding those with skull fracture (850–854) | 21 (12.3%) | 9.2 | 7832 (7.2%) | 9.1 | n.s. |
| Contusion with intact skin surface (920–924) | 10 (5.8%) | 7.8 | 2711 (2.5%) | 5.7 | n.s. |
| Certain traumatic complications and unspecified injuries (958–959) | 13 (7.6%) | 10.6 | 3777 (3.5%) | 4.8 | n.s. |
| Late effects of injuries, poisonings, toxic effects, and other external causes (905–909) | 5 (2.9%) | 26.8 | 11,695 (10.7%) | 10.61 | n.s. |
| Crushing injury (925–929) | 5 (2.9%) | 16.8 | 296 (0.3%) | 8.9 | n.s. |
| Superficial injury (910–919) | 2 (1.2%) | 6 | 717 (0.7%) | 6.5 | n.s. |
| Open wound of lower limb (890–897) | 3 (1.7%) | 24 | 673 (0.6%) | 5.9 | n.s. |
| Open wound of head, neck, and trunk (870–879) | 2 (1.2%) | 1.5 | 848 (0.8%) | 5.3 | n.s. |
| Sprains and strains of joints and adjacent muscles (840–848) | 4 (2.3%) | 3.8 | 6090 (5.6%) | 5 | n.s. |
| Open wound of upper limb (880–887) | 1 (0.5%) | 17 | 3284 (3.0%) | 3.86 | n.s. |
| All injuries Chapters | 171 (100%) | 12.1 | 109,425(100%) | 9.9 | 0.03 * |
(*) statistically significant (p < 0.05); (.) marginally significant (0.05 < p < 0.010); n.s.: not statistically significant (p > 0.10).