Table 2.

Results of logistic regression of variables assumed to be predictive or a consequence of complaint specificity

Factor	p in univariate regression*	p in multivariate regression °	Odds ratio in multivariate regression [95% CI]
Predictive of complaint specificity
Age	0.171
Gender	0.466
Previous medical contact	0.001	0.001	1.828 [1.268–2.636]
Consequences of complaint specificity
Triage	0.101
Resuscitation bay	0.241
Length of ED stay	0.748
Vague diagnosis at ED discharge	0.012	0.001	1.822 [1.159–2.899]
Length of hospital stay	0.029	0.025	1.001 [1–1.002]
Vague diagnosis at ED discharge	0.923
Mortality	0.054	0.087	1.922 [0.909–4.065]

^*significance defined as p < 0.1

°significance defined as p < 0.05 (see methods section for details)