Table 8.

Comparison of IgA levels between groups.

	Group(I)	Group(J)	Mean difference (I–J)	Standard error	P value	95% Confidence interval
						Lower limit	Upper limit
LSD	1	2	−32.0	40.4	.454	−127.4	63.4
		3	−157.7*	40.4	.006	−253.1	−62.2
		4	−156.2*	45.1	.011	−262.9	−49.5
	2	1	32.0	40.4	.454	−63.4	127.4
		3	−125.7*	40.4	.017	−221.1	−30.2
		4	−124.2*	45.1	.028	−230.9	−17.5
	3	1	157.7*	40.4	.006	62.2	253.1
		2	125.7*	40.4	.017	30.2	221.1
		4	1.5	45.1	.974	−105.2	108.2
	4	1	156.2*	45.1	.011	49.5	262.9
		2	124.2*	45.1	.028	17.5	230.9
		3	−1.5	45.1	.974	−108.2	105.2

See legend in Table 2. *P < 0.05.