Table:
characteristics
geometric mean
95% confidence interval

from
to

total
1.3
1.1
1.4

age group

6 to 8
1.8
1.6
2.1

9 to 11
1.4
1.2
1.7

12 to 14
1.2
1.0
1.4

15 to 17
0.9
0.8
1.1

sex

male
1.2
1.1
1.4

female
1.3
1.2
1.5

time of urine collection

morning
1.1
1.0
1.3

afternoon
1.5
1.3
1.7

evening
1.4
1.0
1.7

ethnicity

white
1.3
1.2
1.5

non-white
1.3
1.0
1.6

exposure to second-hand smoke

once a week or less
1.2
1.1
1.4

every day or almost every day
1.6
1.4
2.0

household income

low/lower-middle
1.7
1.4
2.0

upper-middle
1.2
1.0
1.4

highest
1.2
1.1
1.4

household education

secondary school graduation or less
1.3
1.0
1.6

at least some postsecondary
1.3
1.1
1.5

body mass index

neither overweight nor obese
1.3
1.2
1.5

overweight
1.3
1.0
1.7

obese
1.2
1.0
1.4

Please review this table image and return a text representation of the table in HTML format.

<table border="1" cellspacing="0">
<tr> <td rowspan="2"> characteristics </td> <td rowspan="2"> geometric mean </td> <td colspan="2"> 95% confidence interval </td> </tr>
<tr> <td> from </td> <td> to </td> </tr>
<tr> <td> total </td> <td> 1.3 </td> <td> 1.1 </td> <td> 1.4 </td> </tr>
<tr> <td> age group </td> <td colspan="3">  </td> </tr>
<tr> <td> 6 to 8 </td> <td> 1.8 </td> <td> 1.6 </td> <td> 2.1 </td> </tr>
<tr> <td> 9 to 11 </td> <td> 1.4 </td> <td> 1.2 </td> <td> 1.7 </td> </tr>
<tr> <td> 12 to 14 </td> <td> 1.2 </td> <td> 1.0 </td> <td> 1.4 </td> </tr>
<tr> <td> 15 to 17 </td> <td> 0.9 </td> <td> 0.8 </td> <td> 1.1 </td> </tr>
<tr> <td> sex </td> <td colspan="3">  </td> </tr>
<tr> <td> male </td> <td> 1.2 </td> <td> 1.1 </td> <td> 1.4 </td> </tr>
<tr> <td> female </td> <td> 1.3 </td> <td> 1.2 </td> <td> 1.5 </td> </tr>
<tr> <td> time of urine collection </td> <td colspan="3">  </td> </tr>
<tr> <td> morning </td> <td> 1.1 </td> <td> 1.0 </td> <td> 1.3 </td> </tr>
<tr> <td> afternoon </td> <td> 1.5 </td> <td> 1.3 </td> <td> 1.7 </td> </tr>
<tr> <td> evening </td> <td> 1.4 </td> <td> 1.0 </td> <td> 1.7 </td> </tr>
<tr> <td> ethnicity </td> <td colspan="3">  </td> </tr>
<tr> <td> white </td> <td> 1.3 </td> <td> 1.2 </td> <td> 1.5 </td> </tr>
<tr> <td> non-white </td> <td> 1.3 </td> <td> 1.0 </td> <td> 1.6 </td> </tr>
<tr> <td> exposure to second-hand smoke </td> <td colspan="3">  </td> </tr>
<tr> <td> once a week or less </td> <td> 1.2 </td> <td> 1.1 </td> <td> 1.4 </td> </tr>
<tr> <td> every day or almost every day </td> <td> 1.6 </td> <td> 1.4 </td> <td> 2.0 </td> </tr>
<tr> <td> household income </td> <td colspan="3">  </td> </tr>
<tr> <td> low/lower-middle </td> <td> 1.7 </td> <td> 1.4 </td> <td> 2.0 </td> </tr>
<tr> <td> upper-middle </td> <td> 1.2 </td> <td> 1.0 </td> <td> 1.4 </td> </tr>
<tr> <td> highest </td> <td> 1.2 </td> <td> 1.1 </td> <td> 1.4 </td> </tr>
<tr> <td> household education </td> <td colspan="3">  </td> </tr>
<tr> <td> secondary school graduation or less </td> <td> 1.3 </td> <td> 1.0 </td> <td> 1.6 </td> </tr>
<tr> <td> at least some postsecondary </td> <td> 1.3 </td> <td> 1.1 </td> <td> 1.5 </td> </tr>
<tr> <td> body mass index </td> <td colspan="3">  </td> </tr>
<tr> <td> neither overweight nor obese </td> <td> 1.3 </td> <td> 1.2 </td> <td> 1.5 </td> </tr>
<tr> <td> overweight </td> <td> 1.3 </td> <td> 1.0 </td> <td> 1.7 </td> </tr>
<tr> <td> obese </td> <td> 1.2 </td> <td> 1.0 </td> <td> 1.4 </td> </tr>
</table>