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Table 1 Comparisons of demographic between groups (mean ± SD)

From: Selective impairments of alerting and executive control in HIV-infected patients: evidence from attention network test

  Normal controls (n = 31) HIV-infected patients (n = 27) Statistics
Sex ratio (M: F) 18:13 17:10 χ 2= 0.145, p = 0.704
Index age (years) 30.97 ± 12.83 (16–60) 32.26 ± 7.31 (21–45) F = 0.213, p = 0.646
Education levels (years) 11.81 ± 4.42 (4–17) 10.48 ± 4.64 (4–18) F = 1.241, p = 0.270