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Table 3 Multilevel logistic regression models for the socio-demographic determinants of pregnancy termination

From: Socio-demographic determinants of pregnancy termination among adolescent girls and young women in selected high fertility countries in sub-Saharan Africa

Variables Model 0
aOR[95%CI]
Model 1
aOR[95%CI]
Model 2
aOR[95%CI]
Model 3
aOR[95%CI]
Fixed effects results     
Individual level factors
Age
  15–19   Reference   Reference
  20–24   2.34***[2.12–2.59]   2.35*** [2.13–2.60]
Level of education
  No Education   Reference   Reference
  Primary   1.39***[1.26–1.52]   1.13*[1.02–1.26]
  Secondary/Higher   0.98 [0.88–1.10]   0.80**[0.71–0.91]
Marital status
  Single   Reference   Reference
  Cohabiting   5.65*** [4.97–6.43]   6.29*** [5.60–7.20]
  Married   6.22*** [5.39–7.18]   5.49*** [4.74–6.36]
Wealth quintile
  Poorest   Reference   Reference
  Poorer   0.96 [0.86–1.08]   0.98 [0.87–1.10]
  Middle   0.97 [0.86–1.09]   1.00 [0.88–1.13]
  Richer   0.90 [0.79–1.02]   0.92 [0.80–1.05]
  Richest   0.87 [0.75–1.00]   0.87 [0.72–1.04
Frequency of reading newspaper/magazine
  Not at all   Reference   Reference
  Less than once a week   1.01 [0.86–1.19]   0.95 [0.81–1.12]
  At least once a week   1.06 [0.89–1.27]   1.02 [0.85–1.23]
Frequency of listening to radio
  Not at all   Reference   Reference
  Less than once a week   1.16** [1.03–1.29]   1.18** [1.05–1.32]
  At least once a week   1.22*** [1.18–1.34]   1.20*** [1.09–1.32]
Frequency of watching television
  Not at all   Reference   Reference
  Less than once a week   0.96 [0.85–1.09]   1.00 [0.87–1.14]
  At least once a week   1.08 [0.97–1.20]   1.13* [1.01–1.28]
Parity
  Zero births   Reference   Reference
  One birth   1.13* [1.01–1.27]   1.10 [0.98–1.23]
  Two births   0.94 [0.82–1.06]   0.89 [0.78–1.01]
  Three or more births   0.73***[0.64–0.85]   0.68***[0.59–0.80]
Contextual level factors
Place of residence
  Urban    Reference Reference
  Rural    1.20**[1.08–1.33] 1.07 [0.95–1.20]
Community literacy level
  Low    Reference Reference
  Moderate    0.91* [0.83–0.99] 1.10 [1.00–1.21]
  High    0.80***[0.72–0.90] 1.18* [1.04–1.34]
Community socio-economic status
  Low    Reference Reference
  Moderate    0.89 [0.80–1.00] 0.98 [0.86–1.10]
  High    0.93 [0.82–1.04] 1.09 [0.94–1.26]
Random effects results
  PSU Variance(95% CI) 0.06 (0.03–0.10) 0.04 (0.02–0.09) 0.05 (0.03–0.10) 0.03 (0.01–0.08)
  ICC 0.2 0.01 0.02 0.01
  LR Test χ2 = 15.4,
p < 0.001
χ2 = 6.2,
p < 0.05
χ2 = 14.2,
p < 0.001
χ2 = 4.0,
p < 0.05
Wald χ2 Reference 1982.9*** 87.6*** 2126.3***
Model fitness
 Log-likelihood −12,320.6 −10,945.1 −12,275.7 −10,855
 AIC 24,645.3 21,930.2 24,565.3 21,776.4
Sample size 62,747 62,747 62,747 62,747
Number of clusters 1391 1391 1391 1391
  1. Exponentiated coefficients; 95% confidence intervals in brackets; *p < 0.05, **p < 0.01, ***p < 0.001
  2. PSU Primary Sampling Unit, ICC Intracluster correlation coefficient, LR Test Likelihood ratio Test, AIC Akaike’s Information Criterion, aOR adjusted Odds Ratios, CI Confidence Interval
  3. Model 0 is the null model, a baseline model without any explanatory variable
  4. Model 1 is adjusted for individual level variables
  5. Model 2 is adjusted for contextual level variables
  6. Model 3 is the final model adjusted for all explanatory variables and survey country