Usefulness of a stool to stabilize dental chairs for cardiopulmonary resuscitation (CPR)

BMC Emergency Medicine

Table 1 Effect of the stool (stabilizer) on the vertical movements of the backrest caused by MCC. Results are expressed as median [interquartile range]

Chair	Displacement without stool [mm]	Displacement with stool [mm]	Reduction ratio [%]	p-value
#1	40 [16]	10 [3.5]	75 [19]	< 0.001
#2	26 [5.5]	3.5 [0.5]	87 [5]	< 0.001
#3	16.5 [2.5]	12 [1.5]	27 [20]	< 0.001
#4	17 [1.5]	2.5 [0.5]	85 [4]	< 0.001
#5	12 [2]	3.5 [0]	71 [5]	< 0.001
#6	5.5 [0.5]	3.5 [0.5]	36 [15]	< 0.001
#7	12.5 [3.5]	5 [1]	60 [19]	< 0.001
#8	16 [2]	9 [1]	44 [14]	< 0.001

(#: Number of Dental chair) #1 (EOM-PLUS SS®; GC, Tokyo, Japan), #2 (EOM ∑®; GC, Tokyo, Japan), #3 (EOMαII®; GC, Tokyo, Japan), #4 (Celeb BM Type Clair®; TAKARA, Tokyo, Japan), #5 (SPACELINE EMCIA Type II®; MORITA, Tokyo, Japan), #6 (SPACELINE EMCIA Type III UP®; MORITA, Tokyo, Japan), #7 (NOVA SERIO®; YOSHIDA, Tokyo, Japan), #8 (STAGE II®; YOSHIDA, Tokyo, Japan)

ISSN: 1471-227X