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Table 1 Frequency distributions of anti-Toxoplasma gondii IgG in 400 serum samples collected from childbearing-age women in special age groups using ELISA

From: Seroepidemiological study of toxoplasmosis in women referred to a pre-marriage counseling center in Alborz Province, Iran

Age group (year) Positive serum no. (%) Negative serum no. (%) Relative frequencies within age groups (%)
≤ 18 1 (0.25) 26 (6.5) 1/27 (3.7)
19–23 9 (2.25) 71 (17.8) 9/80 (11.2)
24–28 20 (5) 70 (17.5) 20/90 (22.2)
29–33 31 (7.75) 88 (22) 31/119 (26)
34–38 12 (3) 47 (11.8) 12/59 (20.3)
≥ 39 8 (2) 17 (4.25) 8/25 (32)
Total 81 (20.25) 319 (79.75) 81/400 (20.25)