Department of Pediatrics and Injury Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53233, USA.
Inj Prev. 2011 Aug;17(4):233-7. doi: 10.1136/ip.2010.029835. Epub 2011 Feb 4.
To assess the impact of a booster seat law in Wisconsin on booster seat use in relation to race, ethnicity and socioeconomic status.
A longitudinal study in Milwaukee County, Wisconsin, involving repeated direct observational assessments of booster seat use rates by child passengers aged 4-7 years over five time periods, before and after legislation mandating booster seat use.
Overall, booster seat use increased from 24% to 43%, whereas proper restraint use increased pre to post-legislation from 21% to 28%. Proper use increased after legislation in white, but not in black or Latino children. White individuals had a proper booster use increase from 48% to 68% over the time period of the study. Black children's proper use dropped from 18% to 7% over the study period and Latino children's proper use rates were stable at 10%. Driver-reported household income had a significant impact on overall use, but not on proper use.
Racial/ethnic minority groups and those of lower socioeconomic status have significantly lower use and proper use of booster seats. Legislation may increase the total use of booster seats but not necessarily the correct use of the restraint, particularly in racial/ethnic minorities.
评估威斯康星州的 booster seat 法对 booster seat 使用的影响，包括种族、族裔和社会经济地位。
在威斯康星州密尔沃基县进行的一项纵向研究，涉及对 4-7 岁儿童乘客的 booster seat 使用率进行五次重复的直接观察评估，分别在立法强制使用 booster seat 之前和之后进行。
总体而言，booster seat 使用率从 24%增加到 43%，而正确的约束使用率从立法前的 21%增加到立法后的 28%。在白人儿童中，正确使用 booster seat 的比例在立法后增加了，而在黑人和拉丁裔儿童中则没有增加。白人儿童的正确 booster 使用比例从研究期间的 48%增加到 68%。黑儿童的正确使用比例从研究期间的 18%下降到 7%，而拉丁裔儿童的正确使用比例则保持在 10%。司机报告的家庭收入对总体使用有显著影响，但对正确使用没有影响。
种族/族裔少数群体和社会经济地位较低的群体使用 booster seat 的比例明显较低，正确使用 booster seat 的比例也较低。立法可能会增加 booster seat 的总使用量，但不一定会增加约束的正确使用，特别是在种族/族裔少数群体中。
