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Table 2 Results of linear regression of various variables with the duration of hospitalization in days showing the regression β coefficient, P-value, and 95% confidence interval (CI)

From: Ectopic pregnancy: a single-center experience over ten years

  β Coefficient P-value 95% Confidence interval
β-HCG (IU/mL) 0.01 0.04 0.0006 - 0.022
Gestational age (weeks) 0.06 0.39 −0.08 - 0.2
Location −0.01 0.96 −0.22 - 0.21
Detectable heartbeat 0.02 0.95 −0.68 - 0.73
Fluid in the pouch of Douglas 0.35 0.15 −0.16 - 0.82
Abdominal pain 0.28 0.26 −0.21 - 0.76
Intervention method 0.05 0.89 −0.69 - 0.8
Gravidity 0.01 0.85 −0.13 - 0.16
Laterality −0.13 0.41 −0.44 - 0.18
Age (years) 0.02 0.25 −0.01 - 0.05