Objective: to correlate spirituality and religiosity with quality of life of adolescents with and without cleft lip and palate.
Methods: cross-sectional and correlational study involving two groups: case group (n = 40) and comparison group (n = 40). The Duke University Religion Index (DUREL) and the World Health Organization Quality of Life Bref were used for data collection. The Mann-Whitney, Chi-Square, Student's t-test and Pearson's correlation tests were used in the statistical analyses, with a significance level of 5% (p ≤ 0.05).
Results: organizational religiosity and overall quality of life were significantly higher in the case group (p = 0.031 and p = 0.012, respectively). As for quality of life, the Environment Domain was significantly higher in the case group (p < 0.001). In the correlation between religiosity and spirituality, non-organizational religiosity had a strong correlation (r = 0.62) with organizational religiosity (p < 0.001). In the correlation of religiosity and spirituality with quality of life, only a moderate correlation between spirituality and overall quality of life was identified (r = -0.35, p = 0.026).
Conclusion: there was no relationship of religiosity and spirituality with quality of life among adolescents with cleft lip and palate for most aspects evaluated.