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Table 4 Mean scores and standard deviations for total SDQ, internalising, externalising and prosocial SDQ subscales by socio-demographic factors

From: Mental health problems in a regional population of Australian adolescents: association with socio-demographic characteristics

  Outcome
  Total SDQ (0–40) Internalising (0–20) Externalising (0–20) Prosocial (0–10)
n Mean (SD) Mean (SD) Mean (SD) Mean (SD)
All 6793 13.43 (6.49) 5.98 (3.72) 7.45 (3.95) 7.19 (1.97)
Gender   p < 0.0001 p < 0.0001 p < 0.0001 p < 0.0001
 Male 3390 12.96 (6.34) 5.31 (3.57) 7.64 (3.92) 6.72 (2.04)
 Female 3403 13.90 (6.61) 6.64 (3.74) 7.25 (3.97) 7.66 (1.78)
Age   p < .01 p <0 .01 p = 0.06 p = 0.25
 12 829 13.12 (6.48) 5.78 (3.61) 7.35 (4.02) 7.34 (1.93)
  Male 360 13.31 (6.23) 5.39 (3.43) 7.91 (3.93) 6.94 (1.99)
  Female 469 12.98 (6.66) 6.07 (3.73) 6.91 (4.03) 7.65 (1.82)
 13 2008 13.15 (6.45) 5.79 (3.64) 7.36 (3.94) 7.20 (1.89)
  Male 1024 13.03 (6.41) 5.42 (3.63) 7.61 (3.87) 6.77 (1.93)
  Female 984 13.28 (6.49) 6.18 (3.61) 7.10 (4.01) 7.64 (1.75)
 14 1799 13.52 (6.54) 5.97 (3.74) 7.54 (4.00) 7.15 (2.08)
  Male 885 12.93 (6.41) 5.21 (3.55) 7.72 (4.05) 6.56 (2.18)
  Female 914 14.09 (6.62) 6.72 (3.77) 7.38 (3.94) 7.71 (1.80)
 15 1484 13.94 (6.46) 6.30 (3.82) 7.64 (3.85) 7.14 (1.97)
  Male 736 12.79 (6.15) 5.19 (3.52) 7.60 (3.82) 6.68 (2.05)
  Female 748 15.07 (6.56) 7.39 (3.78) 7.69 (3.89) 7.60 (1.77)
 16 673 13.25 (6.53) 6.10 (3.74) 7.15 (3.95) 7.21 (1.94)
  Male 385 12.83 (6.44) 5.44 (3.67) 7.39 (3.95) 6.85 (1.96)
  Female 288 13.81 (6.62) 6.97 (3.66) 6.83 (3.94) 7.70 (1.80)
Aboriginality   p < 0.0001 p < 0.0001 p < 0.0001 p < 0.001
 Aboriginal and/or Torres Strait Islander 732 15.41 (6.69) 6.70 (3.87) 8.71 (4.01) 6.90 (2.07)
 Non-Aboriginal 6061 13.19 (6.43) 5.89 (3.69) 7.30 (3.92) 7.23 (1.95)
Socioeconomic Disadvantage (SED)a   p = 0.09 p = 0.17 p = 0.26 p = 0.43
 Quintile 1 (most disadvantaged) 725 13.22 (6.69) 5.88 (3.76) 7.34 (4.04) 7.12 (1.96)
 Quintile 2 2090 13.62 (6.41) 6.11 (3.67) 7.52 (3.93) 7.21 (1.94)
 Quintile 3 2781 13.55 (6.48) 6.01 (3.75) 7.53 (3.94) 7.18 (2.00)
 Quintile 4 and 5 1184 12.89 (6.50) 5.71 (3.68) 7.18 (3.91) 7.24 (1.96)
 Quintile 4 1116 12.97 (6.49) 5.75 (3.65) 7.23 (3.93) 7.20 (1.97)
 Quintile 5 (least disadvantaged) 68 11.57 (6.60) 5.15 (4.17) 6.43 (3.52) 7.91 (1.70)
Remoteness (ARIA)   p = 0.63 p = 0.25 p = 0.97 p = 0.29
 Major cities Australia 3311 13.50 (6.55) 6.06 (3.77) 7.45 (3.96) 7.24 (1.97)
 Inner regional Australia 2611 13.35 (6.46) 5.91 (3.66) 7.44 (3.97) 7.18 (1.97)
 Outer regional/remote Australia 860 13.34 (6.35) 5.86 (3.65) 7.48 (3.86) 7.00 (1.95)
  1. aFor all statistical analyses quintiles 4 and 5 were combined due to a small sample distribution of participants and schools in quintile 5