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. 2011 Feb;13(2):117–125. doi: 10.1111/j.1477-2574.2010.00255.x

Table 3.

Variation in prevalence of gallbladder disease: logistic analysis

Demographic characteristics Total (Model I) Male (Model II) Female (Model III)



Number EXP(B) and 95.0% CI Number EXP(B) and 95.0% CI Number EXP(B) and 95.0% CI
Sex

Male (ref.) 2526 1

Female 3801 1.853a

1.304–2.635

Age group

30–49 (ref.) 4177 1 1457 1 2676 1

50+ 2150 1.626a 1069 1.403 1072 1.703a



1.293–2.044 0.887–2.221 1.292–2.245

Children

0–3 (ref.) 869 1

4+ 2879 1.862a


1.306–2.655

Abd. surgery

No (ref.) 6096 1 2424 1 3622 1

Yes 231 2.733a 102 1.957 126 3.335a



1.822–4.099 0.971–3.944 1.949–5.705

Diabetes

No (ref.) 6210 1 2454 1 3703 1

Yes 117 3.285a 102 4.271a 45 1.724



2.045–5.276 2.130–8.566 0.830–3.585

Blood relatives with GBD/GBC

No (ref.) 5813 1 2299 1 3468 1

Yes 514 1.795a 227 2.115a 280 1.564a



1.310–2.458 1.213–3.688 1.049–2.334

Diet – chickpeas

No (ref.) 5330 1 2119 1 3167 1

Yes 997 1.636a 337 2.546a 581 1.354



1.261–2.122 1.563–4.146 0.981–1.860

Drinking water

Tap/Hand pump (ref.) 5407 1 2189 1 3173 1

Well/River/Pond 920 1.758a 337 3.835a 575 1.202



1.338–2.310 2.368–6.209 0.814–1.431

SLI

Low (ref.) 3357 1 1347 1 1996 1

Medium 2266 1.217 893 1.427 1356 1.079



0.962–1.540 0.897– 2.272 0.814–1,431

High 704 0.873 286 0.516 406 1.098



0.599–1.273 0.227–1.172 0.708–1.703

Education

Illiterate (ref.) 3861 1 337 1 3002 1

Literate 2466 1.676a 806 1.179 728 1.849a



1.270–2.212 0.717–1.939 1.302–2.625

River proximity

No (ref.) 3719 844 1119

Yes 2608 1.024 1682 0.608a 2629 1.204



0.809 –1.296 0.393–0.938 0.902–1.606

District

Patna 2311 1 1026 1 1268 1

Varanasi 1784 1.221 509 1.694 1255 0.979



0.903–1.650 0.944–3.040 0.679–1.410

Vaishali 2232 1.874a 991 1.222 1225 2.202a



1.429–2.458 0.728–2.050 1.592–3.046
a

Significant (P < 0.05); number of patients based on analysis with weights.

‘ref’: reference category.

‘Exp B’– Odds ratio (OR) of having the outcome in a specific category.

SLI, standard of living index.