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Table 4 Individual compositional and community contextual factors associated with early sexual debut among ever or currently marriage Nigeria women identified by multivariable multilevel logistic regressions

From: Geographical variations and contextual effects on age of initiation of sexual intercourse among women in Nigeria: a multilevel and spatial analysis

  Empty model Individual variables Individual and community variables
  Model 1 Model 2 Model 3
  OR (95% CI) OR (95% CI) OR (95% CI)
Fixed effects    
Individual characteristics    
Age (completed years)    
   15 – 24   1 1
   25 – 34   1.02 (0.87, 1.21) 1.05 (0.89, 1.24)
   35+   1.19 (1.02, 1.41)* 1.24 (1.05, 1.47)**
Education    
   No education   1 1
   Primary   0.69 (0.59, 0.80)*** 0.74 (0.62, 0.88)***
   Secondary or higher   0.26 (0.22, 0.70)*** 0.30 (0.25, 0.36)***
Ethnicity    
   Hausa/Fulani   1 1
   Igbo   0.35 (0.23, 0.52)*** 0.53 (0.34, 0.80)**
   Yoruba   0.22 (0.14, 0.33)*** 0.32 (0.21, 0.48)***
   Others   0.56 (0.45, 0.70)*** 0.63 (0.51, 0.78)***
Religion    
   Islam   1 1
   Christian   0.77 (0.61, 0.96)* 0.81 (0.64, 1.02)
   Others   1.02 (0.65, 1.59) 0.92 (0.60, 1.45)
Community characteristics    
Type of residence    
   Urban    1.10 (0.95, 1.25)
   Rural    1
Community ethnic diversity    0.98 (0.95, 1.01)
Community median age of marriage    0.77 (0.77, 0.81)***
Community median spousal age gap    1.01 (0.98, 1.05)
Geopolitical region    
   North-central    0.44 (0.31, 0.64)***
   North-east    0.40 (0.24, 0.66)***
   North-west    0.48 (0.30, 0.77)**
   South-east    0.43 (0.24, 0.75)**
   South-south    1
   South-west    0.57 (0.34, 0.96)*
Constant    
Random effects    
State-level    
   Variance (SE) 1.058 (0.289)*** 0.220 (0.084)** 0.057 (0.03)
   VPC (%) 22.8 6.1 1.7
   Explained variation (%) Reference 79.2 94.6
Community-level    
   Variance (SE) 0.280 (0.057)*** 0.104 (0.039)** 0.021 (0.017)
   VPC (%) 6.0 2.9 0.6
   Explained variation (%) Reference 62.8 92.5
Model fit statistics    
   DIC 6543 6255 6219
   Sample size    
State-level 36 36 36
Community-level 177 177 177
Individual-level 5531 5508 5508
  1. Abbreviations: OR – Odds ratio, CI – Confidence interval, VPC – Variance Partition Coefficient, SE – Standard error, DIC – Deviance information criterion
  2. †Number of ethnic group in a community, represents the likelihood that two persons, chosen at random from the same area, belong to different ethnic group
  3. *p < .05, **p < .01, and ***p < .001
  4. Data source: 2003 Nigerian Demographic and Health Survey