|
Univariate analysis
|
Adjusted multilevel analysis
|
---|
Variable
|
OR
|
(95% CI)
|
OR
|
(95% CI)
|
P-value
|
Age at prescription (continuous)
|
0.87
|
(0.83 to 0.91)
|
0.84
|
(0.80 to 0.90)
|
<0.001
|
Age-squared
|
1.00
|
(1.00 to 1.00)
|
1.00
|
(1.00 to 1.00)
|
<0.001
|
Number of contacts with GP in 2009
| | | | | |
<6
|
ref
|
-
|
ref
|
-
| |
6 or more
|
3.00
|
(1.87 to 4.82)
|
2.19
|
(1.18 to 4.08)
|
0.014
|
Total number of prescriptions in 2009*
| | | | | |
<8
|
ref
|
-
|
ref
|
-
| |
8 or more
|
4.60
|
(2.80 to 7.57)
|
3.24
|
(1.63 to 6.42)
|
0.001
|
- GP = general practitioner; OR = odds ratio; CI = confidence interval.
- *Excluding oseltamivir prescriptions.