Table 2: Demographic data of the studied patients’ groups.

- Group A 98 Patients Group B 100 Patients P
Age Group No. % No. %
18-22 years 35 35.7 32 32 0.817
23-35 26 26.5 28 28
36-45 28 28.6 27 27
46-50 9 9.2 13 13
Sex
Male 60 61.2 84 84 0.0032*
Female 38 38.8 16 16
Surgical causes of ventilation
Severe head trauma with severe lung contusion 28 28.6 35 35 0.102
Moderate head trauma with severe lung contusion 10 10.2 4 4 0.089
Severe lung contusion without flail chest 43 43.9 45 45 0.465
Severe lung contusion with flail chest 17 17.3 16 16 0.551

P < 0.05 is considered statistically significant *