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Table 2 Crude (bivariate analysis) from the Cox proportional Hazards Model with time to menarche as response variable.

From: Food insecurity and age at menarche among adolescent girls in Jimma Zone Southwest Ethiopia: a longitudinal study

Covariates

Crude HR (95% CI)

P

Adolescent Food insecurity

  

   Food secure

1.000

 

   Mild food insecurity

0.906 (0.743,1.103)

0.326

   Moderate/Severe food insecurity

0.417 (0.234,0.745)

0.003

Place of Residence

  

   Jimma City

1.000

 

   Small Towns

0.817 (0.682,0.979)

0.028

   Rural

0.759 (0.634,0.910)

0.003

Nutritional status(Height for age z-score)

  

   Normal

1.00

 

   Stunted

0.546 (0.399,0.747)

< 0.001

Work Index

0.994 (0.990,0.999)

0.022

Household income Tertiles

  

   Low

1. 000

 

   Middle

1.011 (0.834,1.126)

0.911

   High

1.264 (1.045,1.529)

0.016

Head of the household

  

   Male

1.000

 

   Female

1.213 (1.001,1.469)

0.049

  1. Source: Jimma Longitudinal Family Survey of Youth; Round 1, 2005-2006; Round 2, 2006-2007.
  2. Data on predictors were collected one year before the dependent variable (age at menarche).
  3. HR = Hazard Ratio.
  4. CI = Confidence Interval.