Table 1.

Correlation of non-polio acute flaccid paralysis (NPAFP) rate to cumulative doses of OPV employed over six years in Uttar Pradesh (UP) and Bihar.

Serial No.	Number of Years of Cumulative Doses	NPAFP Rate Regression Coefficient R	p Value
1	1 Year	0.52	p < 0.001
2	2 Years	0.60	p < 0.001
3	3 Years	0.67	p < 0.001
4	4 Years	0.72	p < 0.001
5	5 Years	0.76	p < 0.001
6	6 Years	0.75	p < 0.001