Table 3.

Factors influencing the efficiency of ORV programmes in the control and elimination of rabies. I, area index calculated until control, permanent control and elimination; P, proportion of territory ever affected; , number of detected cases per square kilometre at the start of ORV; events, the number of countries which achieved rabies control, permanent control or elimination during 1978–2010.

Cox proportional hazard model	variable	transformation	hazard ratio (HR)	95% CIs	significance (p)	n	events	pseudo R2 (max. possible)a
control (90% reduction in rabies cases)	P	logit	0.61	0.42–0.88	0.008	22	16	0.278 (0.943)
	IC90	logit	1.439	0.97–2.13	0.069
permanent control (maintained 90% reduction)			2.593 × 10−20	8.5 × 10−39−0.08	0.038	22	16	0.372 (0.943)
	P	logit	0.588	0.40–0.86	0.007
	IC90	logit	1.86	1.01–3.40	0.045
elimination	P	logit	0.4541	0.27–0.76	0.003	22	11	0.411 (0.854)
	IC100	logit	2.1679	1.11–4.23	0.023

^aCox–Snell pseudo R² value.