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Table 3 Two-piecewise linear regression explained the threshold effect analysis of WII with gallstone prevalence

From: Association between weight-adjusted-waist index and gallstones: an analysis of the National Health and Nutrition Examination Survey

WWI

ULR Test

PLR Test

LRT Test

OR (95% CI)

OR (95% CI)

OR (95% CI)

< 12.7, (n = 7761)

1.34 (1.20,1.49)

1.45 (1.29,1.63)

0.002

≥ 12.7, (n = 243)

0.39 (0.17,0.90)

  1. ULR, univariate linear regression; PLR, piecewise linear regression; LRT, logarithmic likelihood ratio test, statistically significant: P = 0.002
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BMC Gastroenterology

ISSN: 1471-230X

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