Quality Evaluation of Ethambutol Hydrochloride Tablet Batches Available in Governmental Health Facilities of Jimma Town, Southwest Ethiopia

Table 4

Tukey’s multiple comparisons test for weight variation of ethambutol hydrochloride tablet batches tested with each other.

Code for batches	Comparators	Mean difference (code-comparator)	Std. error	Sig.	95% confidence interval
					Lower bound	Lower bound
F1-ET001	F2-ET002	0.29	0.57	0.996	−1.37	1.95
	F3-ET003	0.24	0.57	0.998	−1.42	1.90
	F4-ET004	1.06	0.57	0.439	−0.60	2.72
	F5-ET005	0.96	0.57	0.551	−0.70	2.62
	F6-ET006	5.89	0.57	<0.001	4.23	7.55
F2-ET002	F3-ET003	−0.05	0.57	1.000	−1.71	1.61
	F4-ET004	0.77	0.573	0.760	−0.89	2.43
	F5-ET005	0.67	0.57	0.851	−0.99	2.33
	F6-ET006	5.6	0.57	<0.001	3.94	7.26
F3-ET003	F4-ET004	0.82	0.57	0.708	−0.84	2.48
	F5-ET005	0.72	0.57	0.808	−0.94	2.38
	F6-ET006	5.65	0.57	<0.001	3.99	7.31
	F5-ET005	−0.100	0.57	1.000	−1.76	1.56
F4-ET004	F6-ET006	4.83	0.57	<0.001	3.17	6.49
F5-ET005	F6-ET006	4.93	0.57	<0.001	3.27	6.59

The mean difference is significant at the 0.05 level. F: code for health facilities; ET: ethambutol hydrochloride.