Table 5.

Comparison of the Laboratory Investigations Between the Over and Under 50 Years Patient Groups

Parameters	Group >50 Years (n=20)			Group ≤50 Years (n=55)		p value
Measles IgG titers (IU/mL)	2733 [475.0–5000.0]			818 [0.0–5000.0]		0.014*
Measles IgG
Negative	0 (0.0)			11 (20.0)		0.031**
Positive	20 (100.0)			44 (80.0)
Rubella IgG titers (IU/mL)	111 [16.0–200.0]			48 [0.0–200.0]		0.029*
Rubella IgG
Negative	0 (0.0)			3 (5.5)		0.560**
Positive	20 (100.0)			52 (94.5)
	Group 1 (n=8)	Group 2 (n=12)	p value	Group 1 (n=35)	Group 2 (n=20)	p value
Measles IgG titers (IU/mL)	2207.50 [494.0–5000.0]	2805.5 [748.0–5000.0]	0.624*	644.0 [0.0–5000.0]	2377 [97.0–5000.0]	0.004*
Rubella IgG titers (IU/mL)	80.0 [16.0–161.0]	149.50 [26.0–200.0]	0.082*	45 [0.0–171.0]	77.50 [31.0–200.0]	0.012*

Notes: Bold numbers emphasize significant p value *Mann–Whitney U-test **Pearson’s Chi-Square or Fisher’s exact test.