The relationship between lower urinary tract symptoms and health status: the UREPIK study

Authors


P. Boyle, Division of Epidemiology and Biostatistics, European Institute of Oncology, via Ripamonti 435, 20141 Milan, Italy.
e-mail: Peter.Boyle@ieo.it

Abstract

Is it justifiable to treat men in chronic retention conservatively? Urologists from the UK assess the outcome of men presenting with LUTS associated with large postvoid residual urine volumes. They found that complications such as renal failure and UTIs were uncommon in these patients. It was felt that conservative management for such patients was reasonable, but careful follow-up was advisable.

The authors from Mannheim and Kiel evaluated a new clinical method for determining bladder wall tension during detrusor contraction in the course of physiological voiding and under pathological conditions. They report that this was possible by combining a urodynamic evaluation with an ultrasonographic determination of bladder wall thickness. They plan to carry out further research into the relevance of bladder wall tension in lower urinary tract dysfunction.

OBJECTIVES

To assess the hypothesis that as lower urinary tract symptoms (LUTS) increase in severity, the impact as measured by the BPH impact index (BII) would also increase.

SUBJECTS AND METHODS

The UREPIK survey collected information on this relationship from men and their partners in the Netherlands, Korea, France and the UK. Culturally and linguistically validated versions of three standard questionnaires, the SF-12, the BII and the International Prostate Symptom Score (IPSS) were used to assess the distribution of symptoms and the impact on health status. Stratified random samples of men aged 40–79 years in each community were recruited. Response rates were 72% in Boxmeer, 28% in Auxerre, 60% in Birmingham and 68% in Seoul. Regression analyses were undertaken on total SF-12, BII and IPSS.

RESULTS

In all, 4800 index men and 3674 women responded; the BII increased with increasing IPSS. The correlation coefficients were; Boxmeer 0.69, Auxerre 0.56, Birmingham 0.60 and Seoul 0.68. For women, the correlations were slightly lower except in Birmingham, at 0.65 (Boxmeer), 0.44 (Auxerre), 0.71 (Birmingham), 0.57 (Korea). BII scores were higher in women than in men with the same level of IPSS. Adjusting for IPSS there was no association between age and BII. There was an association between IPSS quality-of-life (QoL) score and BII; for men the correlation was 0.62 and for women 0.60. Men and women with the same score on the IPSS QoL reported the same bother. Among those with an IPSS of 20–35 women expressed significantly more bother (P < 0.001). The SF-12 scores decreased as the IPSS and the BII increased in both men and women. Furthermore, the SF-12 mental score decreased with increasing symptoms in the partner.

CONCLUSIONS

The relationship between the severity of LUTS and BII was similar in all centres. There is a clear association between the BII and the IPSS QoL question in men and women. The BII discriminates between people who are unhappy about their urinary condition compared with those who are pleased. Although designed for use in men with benign prostatic hyperplasia, the index also appears to be a useful among women. The severity of symptoms of LUTS has an adverse effect on the health status of the individual and his/her partner.

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