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Apr 23, 2024 · This can make the car feel less steady, which is . Also, if you have more people sitting in the back seats than in the front, it can push the CG toward the back of the car, which can change how it handles. Vehicle design is an important factor to a vehicle’s weight distribution. A lawyer experienced in truck accidents claimed that how a car ...
May 16, 2024 · Child restraint laws require children riding in a car to use approved restraint devices (car seats, booster seats, or seat belts) appropriate for their weight, height, and age. Strengthening current laws with booster seat provisions that require children who have outgrown car seats to use booster seats until at least age 9 helps reduce injuries and deaths.
Influence of seat position and belt usage: The position of the seat and the usage of seat belts can affect the weight threshold for airbag activation. Different seat positions (e.g., reclined or upright) can affect the weight distribution on the seat, which in turn can impact the weight measurement.
Population. In the current systematic review, we will include studies reporting data on seat belt use in commercial or personal vehicles for both drivers and passengers seated in front or rear. Passengers aged more than 12 years will include, as the use of seat belts is recommended for people aged 12 years or older, and for passengers younger ...
- Description of Included Studies
- Risk of Any Major Injuries in Belted Versus Unbelted Passengers
- Risk of Spinal Injuries
- Risk of Head Injuries
- Risk of Facial Injuries
- Risk of Thoracic Injuries
- Risk of Abdominal Injuries
- Risk of Neck Injuries
- Risk of Limb Injury
- Subgroup Analyses
The total number of records identified through the literature search process in all databases after removal of duplicates was 1150 (Fig. 1). Searches conducted from reference lists of key articles and citation trails did not yield results. Titles and abstract were screened. Finally, full texts were screened and only 11 papers were included in the m...
The use of seatbelts was associated with lower risk of major injuries in six [32, 34, 35, 38, 39, 42] of the 11 studies included in the meta-analysis. However, the level of risk reduced as a result of wearing a seatbelt varied notably across studies (Fig. 2). Overall, the risk of any major injury was significantly lower in seatbelt users compared t...
Figure 4 is a forest plot depicting the risk of injury by major body region in belt users compared to non-belt users. Risk ratios of spinal injuries varied from 0.11 (95% CI: 0.01 to 1.73 in Inamasu & Guiot to 2.98 (95%CI = 1.88 to 4.72) in Fréchède et al as shown in Fig. 4. The pooled risk ratio of spinal injury was 0.56 (95% CI = 0.37 to 0.84) ...
As shown in Fig. 4, there was no statistically significant difference in risk of head injury when pooled analysis was conducted (RR for pooled analysis =0.49; 95% CI = 0.22 to 1.08). Investigations for heterogeneity between the studies included in this pooled analysis showed a statistically significant high heterogeneity between study results (Tau2...
Two studies reported data on facial injuries in relation to seatbelt use [35, 36](Fig. 4). Taken together there was no statistically significant difference in risk of facial injury between seatbelt users compared with passengers who did not use seatbelts (RR = 0.75, 95%CI: 0.40 to 1.43), I2 = 96.9%; p< 0.0001).
Two studies reported data on thoracic injuries [35, 37] as seen in Fig. 4. The pooled risk ratio for thoracic injury also showed no statistically significant difference in risk of thoracic injury between seatbelt users and non-users (RR = 0.96, 95%CI: 0.74 to 1.24; Tau2 = 0.0, I2 = 0%, p= 0.754).
Two studies reported data on abdominal injuries [35, 39]. The pooled risk ratio showed significantly lower risk of abdominal injury in seatbelt users compared to non-users (RR = 0.87, 95%CI: 0.78 to 0.98, I2 = 0%; p = 0.912) (Fig. 4).
There was no statistically significant difference in risk of neck injury between belted and non-belted passengers as shown in Fig. 4. The pooled estimate showed there was a non-significant effect (RR = 0.69, 95%CI: 0.07 to 6.44, Tau2 = 1.761; I2 = 56.6%, p = 0.129) (Fig. 4).
Abu Zidhan et al reported no statistically significant difference in risk of upper limb injury (RR = 1.05, 95%CI: 0.83 to 1.34) and risk of lower limb injury (RR = 0.77, 95%CI: 0.58 to 1.04) in belted versus non-belted passengers. Heterogeneity was inestimable due to the fewer number of studies included (Fig. 4).
In addition to assessing effect estimates by major anatomical injury site and crash type, other potential sources of heterogeneity that might impact the effect estimate for the risk of any injury across the studies were explored. These were: sample size (at or above the median versus below median); publication date (before 2010 versus during or aft...
- Nicole Fouda Mbarga, Abdul-Razak Abubakari, Leopold Ndemnge Aminde, Antony R. Morgan
- 2018
The force on seat belts can be as much as 20 times a person’s weight, without restraint that’s how hard they would hit the windscreen, steering wheel, dashboard or even other passengers. Aside from the safety issue, failure to wear a seat belt – or make sure passengers in the car are wearing one - will result in a fine, and demerit points in some places
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Additionally, in 36 European countries, the median reported usage of seat belts among front-seat occupants was 86%, and the median proportion of rear seat-belt use was 65% . This study also found that the prevalence of seat belt use in women drivers and passengers was significantly higher than in men.
