|
Risk factor at baseline
|
Total number in category n (%)
|
Number with asthma n
|
Asthma OR (95% CI)
|
P-value
|
Number with rhinitis n
|
Rhinitis OR (95% CI)
|
P-value
|
|---|
|
Eczema
| | | |
<0.001
| | |
<0.001
|
|
No
|
2,573 (82.4)
|
101
|
1.0
| |
107
|
1.0
| |
|
Yes
|
551 (17.6)
|
49
|
2.85 (1.72-4.71)
| |
65
|
3.14 (2.27-4.36)
| |
|
Persistence of eczema
| | | | | | |
<0.001
|
|
No
|
2,886 (92.4)
|
58
|
1.0
|
<0.001
|
135
|
1.0
| |
|
Yes
|
238 (7.6)
|
15
|
4.20 (2.31-7.64)
| |
37
|
3.92 (2.64-5.82)
| |
|
Onset of eczema
| | | | | | |
<0.001
|
|
No
|
2,483 (80.6)
|
46
|
1.0
|
<0.001
|
98
|
1.0
| |
|
Age ≥ one year
|
216 (6.9)
|
6
|
1.87 (0.7-4.45)
| |
8
|
0.96 (0.46-2.00)
| |
|
Age < one year
|
386 (12.6)
|
21
|
3.63 (2.12-6.22)
| |
66
|
5.02 (3.58-7.05)
| |
|
Eczema severity
| | | | | | |
<0.001
|
|
No
|
2,478 (79.47)
|
45
|
1.0
|
<0.001
|
98
|
1.0
| |
|
Mild
|
468 (15.0)
|
17
|
2.42 (1.36-4.29)
| |
47
|
2.74 (1.90-3.95)
| |
|
Moderate to severe
|
173 (5.5)
|
11
|
4.55 (2.27-9.12)
| |
27
|
4.74 (2.98-7.55)
| |
|
Gender
| | | | | | |
0.001
|
|
Female
|
1,546 (49.5)
|
25
|
1.0
|
0.002
|
65
|
1.0
| |
|
Male
|
1,579 (50.5)
|
48
|
2.16 (1.32-3.54)
| |
107
|
1.67 (1.21-2.29)
| |
|
Age of the child
| | | | | | |
0.727
|
|
12-23 month
|
1,557 (49.8)
|
41
|
1.0
|
0.325
|
88
|
1.0
| |
|
24-35 month
|
1,568 (50.2)
|
32
|
0.79 (0.49-1.27)
| |
84
|
0.95 (0.70-1.29)
| |
|
Parental history of allergic disease
| | | | | | |
<0.001
|
|
No parent
|
1,594 (51.0)
|
26
|
1.0
|
<0.001
|
47
|
1.0
| |
|
One parent
|
1,199 (38.4)
|
32
|
1.92 (1.14-3.25)
| |
83
|
2.45 (1.69-3.53)
| |
|
Two parents
|
332 (10.6)
|
15 (7.2)
|
3.67 (1.90-7.08)
| |
42
|
4.85 (3.12-7.55)
| |
|
Asthma in the child
| | | | | | |
<0.001
|
|
No
|
2,843 (91.4)
|
--
|
--
| |
147
|
1.0
| |
|
Yes
|
269 (8.6)
|
--
|
--
|
--
|
25
|
4.10 (2.57-6.54)
| |
|
Length of breastfeeding
| | | | | | |
0.791
|
|
Longer than 6 month
|
2,043 (65.9)
|
44
|
1.0
|
0.021
|
112
|
1.0
| |
|
Up to 6 months
|
974 (31.4)
|
23
|
1.14 (0.68-1.90)
| |
54
|
1.02 (0.73-1.43)
| |
|
No breastfeeding
|
82 (2.7)
|
6
|
3.32 (1.36-8.11)
| |
6
|
1.35 (0.57-3.16)
| |
|
Number of bedrooms with PVC
| | | | | | |
0.116
|
|
No PVC in bedroom
|
1,300 (42.8)
|
23
|
1.0
|
0.184
|
60
|
1.0
| |
|
PVC in one bedroom
|
558 (18.4)
|
14
|
1.42 (0.72-2.79)
| |
38
|
1.51 (0.99-2.30)
| |
|
PVC in two bedrooms
|
1,183 (38.9)
|
34
|
1.65 (0.96-2.82)
| |
70
|
1.31 (0.92-1.87)
| |
|
Type of building
| | | | | | |
0.453
|
|
Single-family house
|
2,522 (82.4)
|
58
|
1.0
|
0.902
|
137
|
1.0
| |
|
Multi-family house
|
538 (17.6)
|
12
|
1.04 (0.55-1.96)
| |
33
|
1.13 (0.75-1.70)
| |
|
Parental smoking
| | | | | | |
0.357
|
|
No
|
2,431 (77.8)
|
56
|
1.0
|
0.691
|
139
|
1.0
| |
|
Yes
|
694 (22.2)
|
17
|
1.12 (0.64-1.94)
| |
33
|
0.83 (0.56-1.23)
| |
|
Number of adults living with the child
| | | | | | |
0.830
|
|
Two or more adults
|
2,853 (93.8)
|
66
|
1.0
|
0.320
|
157
|
1.0
| |
|
One adult
|
190 (6.2)
|
6
|
1.54 (0.65-3.62)
| |
11
|
1.07 (0.57-2.01)
| |
- 3,124 children aged 1–2 in 2000 in Värmland, Sweden, were included in the analysis.
- *during the 5-year follow-up period.
