Aim: To transcultural adapt and analyze the reliability of Spanish version of Pregnancy Symptoms Inventory (PSI) and assess the prevalence of pregnancy symptoms in Spanish pregnant women.
Materials and methods: A subsample of 120 healthy pregnant women answered the PSI twice and a sample of 280 report the prevalence and limitation of pregnancy symptoms. The reliability was examined by means of percent agreement and weighted Kappa coefficients. The prevalence of pregnancy symptoms was evaluated by the frequency of answers.
Results: Perfect and perfect-acceptable agreement was observed in 82% and 96% of the pregnant women, respectively. Weighted Kappa coefficients ranged from 0.589 to 0.889, indicating a good reliability. The most frequent symptoms perceived by Spanish pregnant women were urinary frequency, poor sleep, increased vaginal discharge and tiredness.
Conclusion: Spanish Pregnancy Symptoms Inventory is a brief, conceptually equivalent and satisfactory reliable tool that allows an early assessment of the wide range of pregnancy symptoms in the health care practices.
Keywords: Pregnancy symptoms; health-related quality of life; pregnancy discomfort; prenatal care; prenatal diagnosis.