Table 4.

Backwards Logistic Regression Analyses for Selected Variables Associated With Early Hospital Arrival and Treatment

Variable	P¹	ODT <90 minutes	P²	OTT <2 hours
Age	—	—	0.083	1.027 (0.996–1.059)
Onset‐to‐call time	<0.001	0.999 (0.998–0.999)	<0.001	0.999 (0.999–0.999)
Call duration	0.09	0.991 (0.996–1.001)	—	—
New call suggested by the dispatcher	—	—	0.037	2.235 (1.050–4.760)
Call‐to‐dispatch time	0.139	0.997 (0.992–1.001)	0.133	0.998 (0.995–1.001)
Dispatch‐to‐scene time	0.001	0.997 (0.996–0.999)	0.08	0.999 (0.998–1.000)
On‐scene time	0.001	0.999 (0.998–0.999)	0.09	0.999 (0.998–1.000)
Dispatch using high priority	0.048	5.259 (1.017–27.195)	—	—
Arm weakness	—	—	0.079	2.114 (0.918–4.869)
Transport using high priority	<0.001	0.084 (0.023–0.310)	0.02	0.114 (0.028–0.462)

Both regression models presented using P values and odds ratios (95% CI). All odds ratios for time intervals are based on change per minute. P¹=P value for ODT <90 minutes, P²=P value for OTT <2 hours. — indicates variable not included in the final model; ODT, onset‐to‐door time; OTT, onset‐to‐treatment time.