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Appendix A
Methodology for Selecting Product Instability or Tip-Over Injuries and Fatalities
Associated with Televisions, Furniture, and Appliances
A multidisciplinary team of CPSC staff met to discuss terminology, the types of products
of interest, and types of product-associated instability or tip-over incidents that are to be
considered in-scope. For this report, the focus is on heavy objects that tip over and fall on an
individual usually due to some type of interaction, such as climbing or exerting a force, on the
object while it is in one of its positions of normal use. This interaction with the product results in
the center of gravity of the product changing. When the product falls on an individual, the
injuries are typically crushing or compressing in nature. Instability is defined differently from
tip-over incidents for this report. For instability, the product falls due to some issue with the
product’s center of gravity changing (i.e., with or without the interaction associated with tip-
overs). Product instability can be triggered by other causes, including simply having multiple
drawers open in a dresser or cabinet. The instability and tip-over definitions helped to set the
criteria for the types of scenarios and products that have been included in the analysis.
Staff determined that televisions, furniture, and appliances listed in Appendix B have the
greatest risk of tipping over and potentially causing serious or fatal injuries. In examining the types
of products to include, staff considered the product’s potential to fall, and the product’s purpose,
size, location, and weight. The additional criterion of the potential interaction of the individual
with the product was also important. Generally, the focus is on furniture that: is larger or heavier
and has the potential to cause great injury or death; stands more upright in nature; has a normal
resting location; is rarely moved from that normal resting location during day to day activity and;
is not usually meant to be interacted with too much excessive force. Products intended to be sat
on or laid upon, such as chairs, couches, and beds, were excluded, due to the emphasis on
products that are not intended to be frequently moved or interacted with excessive force.
A television or an appliance falling in combination with the furniture (that it is resting in
or on) falling is counted only in the furniture category, when incidents are divided into
television, furniture, or appliance categories in this annual report. Generally, if furniture falls
while either a television or an appliance is resting in or on top of the furniture, then the television
or appliance is also going to fall. Using this logic, it makes sense to categorize these incidents by
putting them all into the furniture category, even though many times the injury or death scenario
is caused by a person, usually a child, being drawn to interact with or actually interacting with a
television or appliance that is sitting atop free-standing furniture. In many instances, the
television or appliance that falls along with furniture is likely the primary cause of more severe
injuries or fatalities, rather than the furniture that fell as well.
The potential product codes were determined from furniture products associated with
televisions, furniture, and appliances that meet the criteria described above and in Appendix B.
Table 11 identifies the product codes used to extract the instability or tip-over data for
televisions, furniture, and appliances.