Predictors of Breast Milk Expression Behavior in Working Mothers

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Jarinta Supavatcharasarn
Parnnarat Sangperm


Purpose: To examine the predictive power of perceived benefits of breast milk expression,
perceived barriers of breast milk expression, and perceived support from significant others on breast milk expression behavior in working mothers.

Design: Correlational predictive design.

Method: The study sample consisted of 78 mothers who brought their child aged 6 months or older to receive health supervision at Siriraj Hospital. Data were collected using the demographic data form, a set of questionnaires consisting of the Breast Milk Expression Behavior, the Perceived Benefits of Breast Milk Expression, the Perceived Barriers of Breast Milk Expression, and the Perceived Support from Significant Others on Breast Milk Expression. Data analysis was performed using multiple regression analysis.

Main findings: The study findings revealed that perceived benefits, perceived barriers, and
perceived support together could predict 36.5% of the variances explained in breast milk expression behavior of working mothers (R2 = .365). Perceived barriers was the most influential predictor of breast milk expression behavior (β = -.415, p < .01), followed by perceived support from significant others (β = .256, p < .01). However, perceived benefits could not predicted breast milk expression behavior of working mothers (β = .076, p = .52).

Conclusion and recommendations: Perceived barriers and supports from significant others
can influence breast milk expression behavior among working mothers. To promote breast milk expression among working mothers so that breastfeeding will continue, nursing interventions should focus on the mothers’ perceived barriers and the solutions to overcome these problems. Working mothers’ significant others should be also considered as a part of interventions.


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How to Cite
Supavatcharasarn, J., & Sangperm, P. (2018). Predictors of Breast Milk Expression Behavior in Working Mothers. Nursing Science Journal of Thailand, 36(4), 66–76. Retrieved from
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