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Table 2 Selection of candidate predictors at bootstrapped stepwise logistic regression.

From: The pediatric NAFLD fibrosis index: a predictor of liver fibrosis in children with non-alcoholic fatty liver disease

  Model 1 Model 2 Model 3
Male gender 243 241 253
Loge age 1,000 1,000 1,000
BMI 617 625 643
Waist 1,000 1,000 1,000
Loge ALT 378 362 350
Loge AST 281 325 341
GGT 389 363 357
Albumin 439 423 312
INR 189 226 208
Glucose 229 -- --
Loge insulin 286 -- --
HOMA-IR -- 218 --
ISI -- -- 300
Loge triglycerides 999 1,000 1,000
Cholesterol 233 198 161
  1. The bootstrap inclusion fraction, i.e. the number of bootstrap samples out of 1,000 where the candidate predictors were selected, is given. Predictors selected for inclusion in the final model are marked in bold. Abbreviations: loge = natural logarithm; BMI = body mass index; ALT = alanine transaminase; AST = aspartate transaminase; GGT = gamma-glutamyl-transferase; INR = international normalized ratio; HOMA-IR = homeostasis model assessment index of insulin resistance; ISI = insulin sensitivity index.