In response to the case scenario, 63.2% of the respondents would discontinue CSI without radiological evaluation (Table 2). Factors associated with discontinuing CSI included residency training in pediatrics (OR, 2.1; 95% CI, 1.4-3.2), PEM training (OR, 2.0; 95% CI, 1.4-2.8), and working in an emergency department where residents rotate (OR, 2.2; 95% CI, 1.5-3.3). Other factors associated with removal of CSI included being in practice for less than 10 years (OR, 1.7; 95% CI, 1.2-2.3), practicing in an urban setting (OR, 1.7; 95% CI, 1.2-2.4), age of 44 years or younger (OR, 1.5; 95% CI, 1.1-2.2), and practicing in a setting where patients younger than 19 years accounted for at least 60% of the patients (OR, 2.0; 95% CI, 1.4-2.8). The total number of annual visits did not appear to be associated with removal of the cervical collar. A logistic regression revealed those characteristics independently associated with removal of CSI. Those trained in pediatrics were nearly twice as likely to remove CSI as those trained in emergency medicine (OR, 1.9; 95% CI, 1.1-3.5). Additionally, those in practice for less than 10 years were 1.7 times more likely to remove CSI than those in practice for more than 10 years (OR, 1.7; 95% CI, 1.1-2.6).