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. 2018 Aug 14;11:587. doi: 10.1186/s13104-018-3696-8

Table 2.

Predictors of unplanned pregnancy in pregnant females (n = 500)

Variables Subcategories B Standard error in B p Odds ratio (OR) 95% CI for OR
Lower Upper
Education Literate − 0.295 0.303 0.330 1
Illiterate 0.744 0.411 1.348
Background Rural 0.968 0.276 < 0.001 1
Urban/semi-urban 2.633 1.533 4.522
Household income Low 0.264 0.266 0.322 1
High 1.302 0.772 2.194
Having daughters Yes − 0.033 0.287 0.908 1
No 0.968 0.551 1.698
Having sons Yes 0.701 0.292 0.016 1
No 2.02 1.137 3.571
Total children ≤1 − 0.415 0.362 0.251 1
≤ 2 0.660 0.325 1.341
Used contraceptives No 0.497 0.249 0.046 1
Yes 1.644 1.009 2.678
Attachment 0.117 0.080 0.146 1.124 0.960 1.315
Social integration − 0.074 0.054 0.173 0.929 0.835 1.033
Reassurance of worth 0.133 0.056 0.018 1.143 1.023 1.276
Reliable alliance − 0.017 0.076 0.819 0.983 0.846 1.141
Guidance 0.050 0.085 0.556 1.051 0.890 1.242
Nurturance − 0.101 0.060 0.089 0.904 0.804 1.016
Constant − 2.397 0.812 0.003 0.091

Cox and Snell R2 = 14.5%, Negelkerke R2 = 21.1%