Table 2.

Weight and volume of vaccine in different sizes of needles.

Descriptions	Needles with attached tips		p-Value*
	21 Gauge (N = 36)	25 Gauge (N = 36)
Empty weights (g)	2.9386 ± 0.0155	2.9393 ± 0.0138	0.837
Full-filled weights (g)	3.4778 ± 0.0169	3.4784 ± 0.0166	0.885
Weights of vaccine (g)	0.5393 ± 0.0116	0.5391 ± 0.0083	0.955
Washed weights (g)	2.9592 ± 0.0159	2.9603 ± 0.0151	0.768
Weights of DS (g)	0.0207 ± 0.0056	0.0210 ± 0.0076	0.813
Weights of TC (g)	0.5186 ± 0.0127	0.5181 ± 0.0079	0.839
Volumes of TC (mL)	0.5035 ± 0.0123	0.5030 ± 0.0076	0.839

Abbreviations: DS - dead space; TC -total capacity.

Data are presented as mean ± standard deviation.

^*P-value corresponds to Student's t-test.