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Table 5 Negative binomial distribution regression analysis for number of attempts

From: Lumbar Puncture in the prone position for Low Birth Weight Neonates

  Estimate Std.Error Z value Pr(>|z|)
(Intercept) -0.157 0.5730 -0.273 0.785
Gestational age -8.123e-6 0.0001 -0.073 0.942
Birthweight 0.000 0.0002 1.142 0.253
Ventilation 0.106 0.1538 0.689 0.491
Indications for LP 0.145 0.0630 2.303 0.021*