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Table 2: Population characteristics and incidental findings in pooled studies^{^a,3–9}
No. Available (Studies) Rate (%) (No.) or Mean Value ± SD 99% CI P (Het) I²/Q Value
Patients 5938 (7) 
Sex (female) 5878 (6) 50.2 (2990) 45.0–55.4 .001 76.0/20.9
Age (mean) (SD) (yr) 5543 (4) 11.3 ± 2.8 
Incidental findings 
    No IF 5938 (7) 79.9 (4648) 66.1–89.0 <.001 96.7/183.3
    ≥1 IF 5938 (7) 16.4 (1189) 9.8–26.2 <.001 94.9/117.6
    ≥1 IF, high resolution 5543 (4) 18.9 (1128) 9.4–34.6 <.001 97.1/104.6
    ≥1 IF, standard resolution 395 (3) 13.2 (61) 5.8–27.2 .016 75.7/8.2
    ≥1 IF, boys 816 (3) 17.6 (133) 14.1–21.7 <.001 97.5/81.0
    ≥1 IF, girls 874 (3) 16.3 (100) 9.2–19.9 .002 83.4/12.0
    IF to follow 5938 (7) 2.6 (67) 0.5–11.7 <.001 95.4/131.2
Note:—Het indicates heterogeneity.
↵a Values are expressed as absolute number of patients (studies) or a percentage, unless otherwise specified.