Table 3 The proportional odds ratios and their 95% CI for the five final ordinal regression models.

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

OR

95% CI

   Final model

   Age in years

1.04**

1.01-1.08

1.10***

1.06-1.15

1.06*

1.01-1.11

1.09***

1.05-1.14

   Gender male

0.55**

0.38-0.78

0.52***

0.37-0.73

0.55*

0.33-0.91

0.55*

0.32-0.94

Music preference

   Dance music

2.25**

1.36-3.72

3.19*

1.12-9.09

3.46*

1.08-11.07

   Southern/funky music

   Rock music

0.47**

0.29-0.76

Number of Last month visits

   Pubs

1.08***

1.05-1.11

1.02*

1.00-1.04

1.05**

1.02-1.08

1.04**

1.01-1.07

   Clubs

0.95*

0.90-1.00

1.11***

1.05-1.17

1.11***

1.05-1.18

   Goa parties

1.28**

1.09-0.151

1.10*

1.02-1.19

1.23**

1.07-1.42

Sampling venue

   Rock festivals

0.41

0.26-0.65

0.50*

0.29-0.87

0.51**

0.31-0.81

   Dance events

1.63**

1.19-2.23

1.69**

1.22-2.35

   Clubs

1.48*

1.04-2.11

   LR chi2 (10)

   Prob > chi2

   Pseudo R squared