Table 4 Mean differences in BPP test scores and 95% CIs according to familial history of psychiatric disorders (compared with those with no family history of the disorders of interest), adjusted for selected factors (among the 150 571 with no individual-level history of mental disorders before draft board examination)

From: The association between family history of mental disorders and general cognitive ability

  Model 1 a Mean (95% CI) difference in BPP scores Model 2 b Mean (95% CI) difference in BPP scores
  Present in mother Present in father Present in one or more siblings c Present in mother Present in father Present in one or more siblings c
F00–F99: any psychiatric history −1.76 (−1.96 to −1.56) −2.06 (−2.27 to −1.85) −1.75 (−1.92 to −1.59) −0.91 (−1.09 to −0.72) −1.13 (−1.33 to −0.93) −0.76 (−0.91 to −0.60)
F00–F09: organic (incl. symptomatic) mental disorders −1.61 (−3.16 to −0.06) −2.27 (−3.30 to −1.24) −0.44 (−1.91 to 1.04) −1.29 (−2.27 to −0.32)
F10–F19: mental and behavioral disorders due to psychoactive substance abuse −3.69 (−4.13 to −3.24) −3.18 (−3.50 to −2.86) −3.41 (−4.08 to −2.75) −2.09 (−2.52 to −1.67) −1.64 (−1.94 to −1.33) −1.87 (−2.51 to −1.23)
F20–F29: schizophrenia and related disorders −1.64 (−2.28 to −0.99) −1.65 (−2.32 to −0.98) −1.84 (−2.67 to −1.02) −0.74 (−1.33 to −0.15) −0.63 (−1.24 to −0.02) −0.82 (−1.60 to −0.05)
F30–F39: mood disorders −1.13 (−1.44 to −0.82) −1.12 (−1.48 to −0.76) −1.59 (−2.06 to −1.13) −0.44 (−0.73 to −0.16) −0.59 (−0.92 to −0.27) −0.74 (−1.17 to −0.31)
F40–F48: neurotic, stress-related, and somatoform disorders −2.22 (−2.47 to −1.96) −2.22 (−2.52 to −1.92) −1.82 (−2.21 to −1.42) −1.06 (−1.30 to −0.83) −1.12 (−1.39 to −0.84) −0.85 (−1.21 to −0.48)
F50: eating disorders −0.48 (−1.51 to 0.56) −0.49 (−4.89 to 3.92) 0.44 (−0.45 to 1.34) 0.40 (−0.59 to 1.38) −2.33 (−5.84 to 1.17) 0.16 (−0.64 to 0.96)
F60: specific personality disorders −2.51 (−2.90 to −2.13) −2.26 (−2.71 to −1.80) −3.06 (−3.72 to −2.41) −1.13 (−1.49 to −0.77) −1.00 (−1.43 to −0.58) −1.48 (−2.09 to −0.88)
F70–F79: mental retardation −7.43 (−10.5 to −4.40) −5.35 (−10.2 to −0.50) −4.40 (−5.68 to −3.13) −4.20 (−6.97 to −1.43) −2.93 (−7.45 to 1.59) −2.36 (−3.58 to −1.14)
F84: pervasive developmental disorders (autism spectrum) 0.58 (−0.41 to 1.58) 1.42 (0.50 to 2.34)
F90–F98: behavioral and emotional disorders with onset usually occurring in childhood and adolescence −2.78 (−3.36 to −2.20) −1.08 (−1.62 to −0.54)
  1. Abbreviations: BPP, Børge Priens Prøve; CI, confidence interval.
  2. In all, 144 159 had at least one sibling, whereas 6412 were only children.
  3. aAdjusted for year of testing only.
  4. Adjusted for year of testing, parental age, parental education, birth order, singleton versus twins, small for gestational age.
  5. Compared with others who had at least one sibling (as only children cannot have a sibling with a psychiatric disorder registered).