259219 Reliability and Validity of a Modified Version of the Postpartum Bonding Questionnaire

Monday, October 29, 2012 : 11:30 AM - 11:45 AM

Cara Bicking Kinsey, MS, RNC , School of Nursing, The Pennsylvania State University, University Park, PA
Kesha Baptiste-Roberts, PhD, MPH , School of Nursing & College of Medicine, Department of Public Health Sciences, Penn State University, Hershey, PA
Kristen Kjerulff, MA, PhD , Public Health Sciences, Penn State University, Hershey, PA
Background. Maternal-infant bonding refers to the maternal emotional response to the infant. Although validated instruments for measurement of maternal-infant bonding exist, they are designed to identify women at risk for bonding impairment, rather than to quantitatively examine the state of the mother-infant relationship, as is desired for use in large research studies. This study reports the validity and reliability of a modified and shortened version of the Postpartum Bonding Questionnaire (PBQ) which was developed to measure variations in maternal-infant bonding in a large multisite research study.

Methods. The 13-item modified PBQ was administered via telephone interview to 3005 mothers 1 month after delivery of their first live-born infant. Factor analysis was completed to evaluate scale components. Internal reliability and validity were examined.

Results. The modified PBQ demonstrated acceptable internal reliability (Cronbach's alpha=0.773). Factor analysis revealed three main factors: emotional bond; confidence; and rejection. Consistent with extant literature, maternal-infant bonding was significantly negatively correlated with maternal stress (r=-0.31; p<0.01), pain (r=-0.137; p<0.01), infant colic (p<0.001) and postpartum depression (p<0.001), and positively correlated with maternal health (r=0.362; p<0.01), and social support (r=0.347; p<0.01), confirming construct validity.

Conclusions. The modified version of the PBQ provides a shortened instrument for measuring maternal-infant bonding with good reliability and validity in large population studies. The use of this instrument in maternal-child health research will help to advance understanding of maternal-infant bonding, a crucial component of the mother-child relationship.

Learning Areas:
Public health or related research

Learning Objectives:
Discuss the need for a modified instrument to quantitatively evaluate maternal-infant bonding. Discuss the three main factors of the modified PBQ instrument and how they compare to existing instruments for maternal-infant bonding. Identify concepts that are correlated with maternal-infant bonding as measured by a modified PBQ instrument.

Keywords: Maternal and Child Health, Mental Health

Presenting author's disclosure statement:

Qualified on the content I am responsible for because: I am a doctoral student in nursing and public health sciences and have completed the analysis for this presentation along with my co-authors.
Any relevant financial relationships? No

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.