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. 2007 Dec;27(12):744-8.
doi: 10.1038/sj.jp.7211823. Epub 2007 Sep 6.

Validation of the 4P's Plus screen for substance use in pregnancy validation of the 4P's Plus

I J Chasnoff  1 , A M Wells, R F McGourty, L K Bailey
Affiliations

Validation of the 4P's Plus screen for substance use in pregnancy validation of the 4P's Plus

I J Chasnoff et al. J Perinatol. 2007 Dec.

Abstract

Objective: The purpose of this study is to validate the 4P's Plus screen for substance use in pregnancy.

Study design: A total of 228 pregnant women enrolled in prenatal care underwent screening with the 4P's Plus and received a follow-up clinical assessment for substance use. Statistical analyses regarding reliability, sensitivity, specificity, and positive and negative predictive validity of the 4Ps Plus were conducted.

Result: The overall reliability for the five-item measure was 0.62. Seventy-four (32.5%) of the women had a positive screen. Sensitivity and specificity were very good, at 87 and 76%, respectively. Positive predictive validity was low (36%), but negative predictive validity was quite high (97%). Of the 31 women who had a positive clinical assessment, 45% were using less than 1 day per week.

Conclusion: The 4P's Plus reliably and effectively screens pregnant women for risk of substance use, including those women typically missed by other perinatal screening methodologies.

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