Performance of Jazia Prime Vendor System in ensuring availability of health commodities in Singida Region, Tanzania: a pre- and post-evaluation study

Table 3 Mean difference of availability of commodities before and after Jazia Prime Vendor System commenced

Availability	Paired differences (%)					t	df	P value^a
	Mean	SD		95% CI
			SEM	Lower	Upper
Difference after Jazia PVS	4.779	5.917	0.504	3.783	5.775	− 9.488	136	< 001

SD standard deviation, SEM standard error of the mean, CI confidence interval of the difference, t t-test, df degree of freedom
^aP value at 5% level of significance

ISSN: 2052-3211