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  • Erratum
  • Open Access

Erratum to: Trend of determinants of birth interval dynamics in Bangladesh

  • 1Email author,
  • 2 and
  • 1, 3
BMC Public HealthBMC series – open, inclusive and trusted201616:1088

  • Received: 7 October 2016
  • Accepted: 7 October 2016
  • Published:

The original article was published in BMC Public Health 2016 16:934


During the processing of this article [1], the following typographical error occurred on page 3: , ui was incorrectly introduced:

  1. 1.
    inside the exponent in the definition of S ij (t|X ij , u i ) following Eq. 3; this should read:
    $$ {S}_{ij}\left(t\left|{X}_{ij},{u}_i\right.\right)= \exp \left\{-{\mathit{\int}}_0^t{h}_{ij}\left(x\left|{X}_{ij}\right.,{u}_i\right)\kern0.1em dx\right\}= \exp \left(-{H}_{\mathrm{o}}(t){u}_i\beta \mathit{\hbox{'}}\kern0.1em {X}_{ij}\right) $$
  1. 2.
    inside the exponent in Eq. 4; this should read:
    $$ {L_m}_{,i}\left(\phi, \theta, \beta \right)={\displaystyle \prod_{j=1}^{n_i}{\mathit{\int}}_0^{\infty}\kern0.5em }{\left[{h}_{\mathrm{o}}\left({t}_{ij}\right){u}_i \exp \left(\beta \mathit{\hbox{'}}\kern0.1em {X}_{ij}\right)\right]}^{\delta_{ij}}\times {S}_{ij}\left({t}_{ij}\left|{X}_{ij},{u}_i\right.\right)\kern0.1em \mathit{\mathsf{g}}\kern0.1em \left({u}_i;\theta \right)d{u}_i $$
  1. 3.
    Twice in Eq. 5; this should read:
    $$ \begin{array}{l}{l}_m\left(\phi, \theta, \beta \right)={\displaystyle \sum_{i=1}^K\kern0.1em \left[ \log \varGamma \left\{\left(1/\theta \right)+{d}_i\right\}+{\displaystyle \sum_{j=1}^{n_i}{\delta}_{ij}}\left(\beta \mathit{\hbox{'}}\kern0.1em {X}_{ij}+ \log \left(\upgamma {t}_{ij}^{\upgamma -1}/{\alpha}^{\upgamma}\right)\right)- \log \varGamma \left(1/\theta \right)\right.}\\ {}\left.+{d}_i \log \theta -\left\{\left(1/\theta \right)+{d}_i\right\}\times \log \kern0.5em \left(1+\theta {\displaystyle \sum_{j=1}^{n_i}{\left({t}_{ij}/\alpha \right)}^{\upgamma}} \exp \left(\beta \mathit{\hbox{'}}\kern0.1em {X}_{ij}\right)\right)\right]\end{array} $$



Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated.

Authors’ Affiliations

Institute of Statistical Research and Training (ISRT), University of Dhaka, Dhaka, 1000, Bangladesh
Department of Statistics, Biostatistics & Informatics, University of Dhaka, Dhaka, 1000, Bangladesh
Center for Clinical Epidemiology, St. Luke’s International University, 3-6-2 Tsukiji, Chuo-ku, 104-0045 Tokyo, Japan


  1. Khan JR et al. Trend of determinants of birth interval dynamics in Bangladesh. BMC Public Health. 2016;16:934. doi:10.1186/s12889-016-3577-9.View ArticlePubMedPubMed CentralGoogle Scholar


© The Author(s). 2016