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Table 3 Sample size, demographics and prevalence of individuals with SPHERE-34 and CIDI

From: Validation and psychometric properties of the Somatic and Psychological HEalth REport (SPHERE) in a young Australian-based population sample using non-parametric item response theory

 

8 to 12 years

13 to 14 years

15 to 16 years

17 to 28 years

N stratified by age at SPHERE-34 assessment

709

907

1055

739

Demographics

 

Mean age at CIDI (SD)

21.9 (1.7)

22.9 (2.4)

23.2 (2.5)

28.9 (3.1)

 

N (%) Females

415 (59%)

522 (58%)

641 (61%)

453 (61%)

Prevalence

 MDD

N (%)

118 (16.6%)

150 (16.5%)

172 (16.3%)

119 (16.1%)

Mean age onset (SD)

17.6 (3.1)

18.2 (3.5)

18.9 (3.4)

22.7 (5.3)

 Social anxiety

N (%)

133 (18.7%)

157 (17.3%)

182 (17.3%)

115 (15.5%)

Mean age onset (SD)

12.2 (4.5)

12.4 (4.7)

11.9 (5.0)

12.2 (5.5)

 Alcohol dependence

N (%)

169 (23.8%)

249 (27.4%)

300 (28.4%)

188 (25.4%)

 Marijuana dependence

N (%)

37 (5.2%)

59 (6.5%)

55 (5.2%)

30 (4.1%)

 Panic disorder

N (%) (with agoraphobia)

4 (0.6%)

7 (0.8%)

10 (0.9%)

3 (0.4%)

Mean age onset (SD)

17.0 (2.7)

16.6 (2.9)

16.4 (3.8)

22.0 (3.6)

N (%) (without agoraphobia)

13 (1.8%)

13 (1.4%)

12 (1.1%)

15 (2.1%)

Mean age onset (SD)

14.9 (3.6)

15.1 (4.1)

16.6 (4.8)

20.8 (3.8)