|
Factors associated with age difference between the individuals and those that were contacted, results of multivariate analysis of most parsimonious model. |
||||
| a) |
||||
|
|
||||
| variable |
level |
coefficient |
95% Confidence interval |
p-value |
|
|
||||
| constant |
10.20 |
(7.56, 12.84) |
<0.001 |
|
|
|
||||
| intensity |
Physical only |
baseline |
||
| Conversation only |
-1.10 |
(-3.64, 1.44) |
||
| Conversation & physical |
-4.73 |
(-7.32, -2.13) |
||
| "Sexual" contact |
-7.75 |
(-11.92, -3.58) |
<0.001 |
|
| b) |
||||
|
|
||||
| variable |
Level |
coefficient |
95% Confidence interval |
p-value |
|
|
||||
| constant |
1.58 |
(0.60, 2.55) |
0.002 |
|
|
|
||||
| Place of contact |
Home |
baseline |
||
| College |
5.28 |
(3.92, 6.64) |
||
| Travel |
7.30 |
(5.22, 9.38) |
||
| Shop |
13.81 |
(12.24, 15.38) |
||
| Social |
2.34 |
(1.09, 3.59) |
||
| Other |
5.19 |
(3.36, 7.03) |
<0.001 |
|
|
Note: contact, individual and day of week, were random effects, intensity and place of contact were modelled as fixed effects. Degrees of freedom = 1783 and 1776 for Table 2a and b respectively. | ||||
Edmunds et al. Emerging Themes in Epidemiology 2006 3:10 doi:10.1186/1742-7622-3-10 |
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