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Table 1 Socio-demographic variables for poisoning cases and injury, sick and healthy controls

From: Risk factors for unintentional poisoning in children aged 1–3 years in NSW Australia: a case–control study

Variable

Category

Case: Poisoning

Control 1: Injury

Control 2: Sick

Control 3: Healthy

N (%) or

N (% ) or

N (%) or

N (%) or

  

Median (Range)

Median (Range)

Median (Range)

Median (Range)

Child

     

Birth order

First

8 (89)

15 (42)

30 (83)

19 (53)

 

Second

0 (0)

18 (50)

5 (14)

15 (42)

 

Third or later

1 (11)

3 (8)

1 (3)

2 (6)

Number of hours in child care per week (both in and outside home)

 

16 (0–50)

15.5 (0–40)

18 (0–49)

24.5 (0–54)

Mother

     

Age

 

37 (25–46)

36 (23–46)

35.5 (22–43)

38 (29–45)

Marital status

Married/living with partner

8 (89)

32 (89)

30 (83)

34 (94)

 

Single (never married, separated, divorced)

1 (11)

4 (11)

6 (17)

2 (6)

Highest education level

Year 12 equivalent or below

0 (0)

6 (17)

4 (11)

4 (11)

 

University degree or other technical qualifications

6 (67)

19 (53)

21 (58)

16 (44)

 

Postgraduate studies

3 (33)

11 (31)

11 (31)

16 (44)

Country of birth

Australia

7 (78)

26 (72)

22 (61)

25 (69)

 

Not Australia

2 (22)

10 (28)

14 (39)

11 (31)

Language spoken at home

English

9 (100)

36 (100)

35 (97)

34 (94)

 

Not English

  

1 (3)

2 (6)

Employed outside home

Yes

7 (78)

20 (56)

22 (61)

32 (89)

No

2 (22)

16 (44)

14 (39)

4 (11)

If employed outside home, mother works full-time (>35 hrs/wk)

Yes

2 (29)

3 (15)

4 (18)

4 (13)

No

5 (71)

17 (85)

18 (82)

28 (88)

Smokes cigarettes

Yes

0 (0)

2 (6)

2 (6)

3 (8)

No

9 (100)

34 (94)

34 (94)

33 (92)

Drinks alcohol

Yes

7 (78)

29 (81)

25 (69)

28 (82)

No

2 (22)

7 (19)

11 (31)

6 (18)

Environment

     

Occupant age structure

< 5 years

10 (0.33)

51 (0.38)

47 (0.39)

44 (0.34)

 

5-9 years

1 (0.03)

16 (0.12)

4 (0.03)

9 (0.07)

 

10-19 years

1 (0.03)

0 (0)

0 (0)

2 (0.02)

 

20-39 years

10 (0.33)

50 (0.37)

46 (0.38)

36 (0.28)

 

40-59 years

7 (0.23)

18 (0.13)

20 (0.17)

35 (0.27)

 

60+ years

1 (0.03)

1 (0.01)

3 (0.03)

4 (0.03)

 

Mean number of occupants (SD)

3.44 (0.73)

3.97 (0.77)

3.39 (0.77)

3.67 (0.79)

SEIFA Level of socio-economic disadvantage

Least disadvantaged

5 (56)

16 (44)

26 (72)

25 (69)

 

4th

0 (0)

4 (11)

0 (0)

2 (6)

 

3rd

3 (33)

11 (31)

9 (25)

5 (14)

 

2nd

1 (11)

3 (8)

1 (3)

3 (8)

 

Most disadvantaged

0 (0)

2 (6)

0 (0)

1 (3)

Residence type

Apartment

3 (33)

7 (19)

12 (33)

12 (33)

 

Semi, terrace, townhouse, villa

3 (33)

13 (36)

7 (19)

10 (28)

 

Stand-alone home

3 (33)

16 (44)

17 (47)

14 (39)