TY - JOUR PY - 2018// TI - Bias from potentially mischievous responders on large-scale estimates of lesbian, gay, bisexual, or questioning (lgbq)-heterosexual youth health disparities JO - American journal of public health A1 - Cimpian, Joseph R. A1 - Timmer, Jennifer D. A1 - Birkett, Michelle A. A1 - Marro, Rachel L. A1 - Turner, Blair C. A1 - Phillips, Gregory L. SP - S258 EP - S265 VL - 108 IS - S4 N2 - OBJECTIVES: To determine how sensitive estimates of lesbian, gay, bisexual, or questioning (LGBQ)-heterosexual youth health disparities are to the presence of potentially mischievous responders.

METHODS: We used US data from the 2015 Youth Risk Behavior Survey, pooled across jurisdictions that included a question about sexual identity for a total sample of 148 960 students. We used boosted regressions (a machine-learning technique) to identify unusual patterns of responses to 7 screener items presumably unrelated to LGBQ identification, which generated an index of suspected mischievousness. We estimated LGBQ-heterosexual youth disparities on 20 health outcomes; then we removed 1% of suspected mischievous responders at a time and re-estimated disparities to assess the robustness of original estimates.

RESULTS: Accounting for suspected mischievousness reduced estimates of the average LGBQ-heterosexual youth health disparity by up to 46% for boys and 23% for girls; however, screening did not affect all outcomes equally. Drug- and alcohol-related disparities were most affected, particularly among boys, but bullying and suicidal ideation were unaffected.

CONCLUSIONS: Including screener items in public health data sets and performing rigorous sensitivity analyses can support the validity of youth health estimates.

Language: en

LA - en SN - 0090-0036 UR - http://dx.doi.org/10.2105/AJPH.2018.304407 ID - ref1 ER -