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Table 2 Results from the two study groups

From: A retrospective study on the influence of siblings’ relatedness in Bolivian patients with chronic Chagas disease

Variable Siblings groups (n = 71) Control groups (n = 299) P-value
Available (%) Concordant (%) Positive (%) Negative (%) Available (%) Concordant (%) Positive (%) Negative (%) Conc Pos/Neg
Pre-treatment PCR 39 (54.92) 27 (69.23) 12 (30.77) 15 (38.46) 172 (57.52) 86 (50.00) 23 (13.37) 63 (36.63) 0.023 0.015
Kushnir (>1) 60 (84.50) 46 (76.67) 3 (5.00) 43 (71.67) 297 (99.33) 218 (73.4) 6 (2.02) 212 (71.38) 0.599 0.331
Esophagogram 38 (53.52) 34 (89.47) 34 (89.00) 126 (42.14) 116 (92.06) 116 (92.06) 0.740 0.740
Barium enema 48 (67.60) 36 (75.00) 3 (6.25) 33 (68.75) 221 (73.91) 137 (61.99) 8 (3.62) 129 (58.37) 0.088 0.160
DTH 32 (45.07) 20 (62.50) 15 (46.88) 5 (15.62) 128 (42.80) 77 (60.15) 72 (56.25) 5 (3.91) 0.808 0.064
  1. Notes: The first column of each group reflects the availability of data, meaning that data were complete for the two or three members of each phratry or randomly-generated control group. When data of one or more members of the same group were missing, that group was discarded for statistical analysis. The P-values are recorded in the last two columns. The first column (Conc) is the result of comparing concordance among siblings against that among control groups. The second column (Pos/Neg) is the result of comparing the same results differentiating those with concordant positive or negative results
  2. Abbreviations: n, number of groups