| IQR | Inter-Quartile Range |
| FPSP | Family planning service provider |
| IUD | Intrauterine device |
| K.A.P | Knowledge, attitude and practice |
| RHS | Reproductive health education and service |
| NB | Negative binomial |
| LM | Lagrange multiplier |
| ZINB | Zero-inflated negative binomial |
| IRR | Incidence rate ratio |