Effect of Age on Injury Severity
The study sought to determine the effect of age on injury severity, outcomes and resource in persons that have suffered from vehicular trauma. The study is motivated by the fact that Geriatric trauma victims sustain more severe complications than younger patients do. By retrospective review of 516 patients with motorcycle and bicycle, the findings show that there are no significant differences by age group in gender, helmet use, substance use, complication and mortality.
The findings further show that older patients had more severe injuries and had to stay longer in intensive care units and were more frequently discharged to sub-acute facilities (Wagner, Rai, Ituarte, Tillou, Cryer, & Hiatt2012). Fewer older bicyclists used helmets and more sustained severe head injuries. The study concludes that motorcycle and bicycle accidents cause major injuries to older people than younger people do.
In addition, older people are characterized by more use of hospital and hospital resources after two-wheel vehicular trauma. The study recommends the use of public health campaigns targeting the use of helmets by older bicyclists.
Null Hypothesis: Older patients (50 years and over) are not affected more by two-wheel vehicular trauma (injuries) than younger patients (under 50 years).
Alternative hypothesis: Older patients (50 years and over) are affected more by two-wheel vehicular trauma (injuries) than younger patients (under 50 years).
- Dependent Variable: Severity of injury (Ratio: Point values assigned to chronic conditions based on mortality predictions)
- Independent variable: Age (Nominal: 50 years and over and under 50 years).
- Type of data required: The test used was unpaired two-tailed t-test at 1% significance level. The variables used have to be independent and identically distributed.
- The two sets are independent and identically distributed (Punch, 2005). This condition is met since the researcher had no influence on people that were admitted to the center.
- The two populations being sampled should follow a normal population (Punch, 2005). No effort is made to determine if the two groups follow a normal distribution. Normalization of the variables is not used.
- The two populations being compared should have equal (comparable) variances. This is not tested in the study.
- The data should be sampled independently from the two populations (Creswell, 2002). This condition is met since the study samples from person at 50 and above and persons below 50 years.