Table 1 Population weighted proportions of WACHS children who were hospitalised with at least one episode of deliberate self-harm between interview in 1993 and December 31 2007, by selected items from the WACHS

Child level factors

Sex

--Male

30.3% (14.3%-51.8%)

50.1% (48.0%-52.3%)

--Female

69.7% (48.2%-85.7%)

49.9% (47.7%-52.0%)

Emotional problems

-No emotional problems

53.8% (35.7%-73.6%)*

79.7% (77.7%-81.6%)*

-Emotional problems NOT more than other children

9.1% (1.7%-21.9%)

8.4% (7.3%-9.7%)

-Emotional problems MORE than other children

37.0% (18.8%-59.4%)*

10.0% (8.6%-11.6%)*

CBCL Total Score:

-Normal

63.3% (43.9%-80.1%)

79.0% (77.1%-80.8%)

-Abnormal

28.6% (13.7%-46.7%)

16.7% (15.0%-18.5%)

CBCL: Delinquent Behavior Score:

-Normal

64.3% (43.9%-80.1%)

86.8% (85.2%-88.3%)

-Abnormal

27.6% (13.7%-46.7%)*

8.9% (7.7%-10.2%)*

Ever breastfed

-No

12.7% (4.1%-26.2%)

15.9% (13.8%-18.2%)

-Yes

87.3% (73.8%-95.9%)

83.8% (81.5%-85.9%)

Birth weight

-Under 2500 g

0.0% (0.0%-1.3%)

3.5% (2.7%-4.4%)

-2500 g and over

71.3% (49.8%-86.2%)

59.4% (56.6%-62.3%)

-Not known

28.7% (13.8%-50.2%)

37.1% (34.3%-39.9%)

IQ score 1993

51-79

6.3% (1.4%-18.3%)

8.8% (7.6%-10.3%)

80-119

45.8% (26.4%-64.3%)

51.6% (49.1%-54.1%)

120-149

4.8% (1.1%-14.6%)

9.8% (8.4%-11.4%)

Carer level factors

Carer smoking status

-Non-smoker

48.0% (26.6%-66.6%)*

74.6% (71.5%-77.5%)*

-Current smoker

52.0% (33.4%-73.4%)*

24.8% (21.9%-27.9%)*

Highest school year completed by child's carer

-Year 9 or lower

16.0% (3.6%-41.4%)

13.2% (11.1%-15.6%)

-Year 10 or higher

84.0% (60.4%-96.6%)

85.8% (83.3%-88.0%)

Government benefit card status of child's carer

-No benefit card

53.8% (36.0%-72.7%)

62.9% (59.3%-66.5%)

-Holds benefit card

46.2% (27.3%-64.0%)

36.5% (32.9%-40.0%)

Carer reported lifetime treatment for mental health problems as at 1993

-Yes, have been treated

29.3% (12.7%-47.2%)

11.4% (9.6%-13.3%)

-No, never treated

70.7% (52.8%-87.3%)

87.9% (85.9%-89.8%)

Parenting style

-Encouraging

23.4% (11.8%-41.2%)*

49.4% (46.9%-52.0%)*

-Coercive

6.8% (1.3%-17.2%)

5.1% (4.2%-6.1%)

-Neutral

16.0% (3.0%-36.3%)

7.0% (5.8%-8.3%)

-Inconsistent

53.8% (34.7%-70.9%)

38.2% (35.6%-40.8%)

Importance of religion to carer

-Very important

16.1% (7.0%-31.4%)

20.8% (18.2%-23.6%)

-Reasonably important

52.9% (33.1%-69.8%)

33.6% (30.8%-36.4%

-Not important at all

22.9% (7.1%-42.2%)

40.0% (36.7%-43.4%)

Maternal age at birth

- < 20 years

27.5% (11.6%-47.8%

5.6% (4.2%-7.1%)*

- > = 20 years

72.5% (52.2%-88.4%)*

93.4% (91.7%-94.8%)*

Family level factors

Family type

-Original

46.2% (25.5%-64.7%

74.2% (70.9%-77.2%)*

-Step/blended

28.8% (10.7%-50.2%)

9.3% (7.7%-11.1%)

-Sole parent

25.0% (9.1%-51.2%)

16.5% (13.8%-19.4%)

Combined weekly income of child's carers (1993 Australian dollars)

-Low (<$600)

42.3% (26.4%-62.3%)

38.8% (35.2%-42.7%)

-Medium ($600-$1,100)

34.8% (19.7%-53.5%)

38.9% (35.6%-42.4%)

-High (>$1,100)

16.1% (6.4%-32.8%)

14.8% (12.3%-17.5%)

Family functioning (FAD)

-Good

87.1% (66.9%-98.7%)

86.5% (84.2%-88.5%)

-Poor

0.5% (0.0%-3.8%)

0.3% (0.1%-0.7%)

School level factors

Teacher rated academic performance at school

-Far below age

4.2% (0.6%-15.8%)

2.1% (1.5%-2.8%)

-Somewhat below age

5.7% (0.6%-16.5%)

11.8% (10.3%-13.6%)

-At age level

37.7% (18.0%-57.5%)

33.4% (31.3%-35.7%)

-Somewhat above age

12.9% (4.4%-28.1%)

19.4% (17.5%-21.5%)

-Far above age

0.0% (0.0%-1.3%)

4.3% (3.4%-5.4%)

Community level factors

Metropolitan or rural residence

-Metro

71.4% (50.6%-85.3%)

69.3% (63.9%-74.2%)

-Rural

20.5% (10.5%-35.0%)

26.3% (22.4%-30.4%)

SEIFA index of relative socio-economic disadvantage

-Less than 950 (most disadvantaged)

31.9% (14.3%-51.8%)

20.3% (14.3%-26.8%)

950-1000

16.8% (7.0%-35.5%)

19.4% (13.7%-26.4%)

1000-1060

25.7% (9.8%-46.7%)

30.0% (22.7%-38.3%)

Over 1060 (least disadvantaged)

25.6% (10.7%-50.2%)

30.4% (22.9%-38.0%)