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Table 3 Adjusted hazard ratios (multivariate 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 Adjusted HR (95% CI) P
Adolescent Food insecurity   
   Food secure 1.000  
   Mild food insecurity 0.936 (0.756,1.158) 0.542
   Moderate/Severe food insecurity 0.496 (0.276,0.892) 0.019
Place of Residence   
   Jimma City 1.000  
   Small Towns 0.859 (0.705,1.045) 0.128
   Rural 0.885 (0.951;1.126  
Nutritional status(Height for age z-score)   
   Normal 1.000  
   Stunted 0.551 (0.402;0.755) < 0.001
Work Index 0.997 (0.992;1.003) 0.383
Household income Tertiles   
   Low 1.000  
   Middle 1.004 (0.818,1.233) 0.968
   High 1.195 (0.967,1.476) 0.098
Head of the household   
   Male 1.000  
   Female 1.135 (0.927,1.389) 0.220
  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.