Bladder Cancer in North India: A Comprehensive Analysis of Risk Factor Determinants

Abstract

Objective:
To evaluate demographic, lifestyle, occupational, and environmental risk factors associated with bladder cancer and to assess their relationship with tumor grade and stage in a North Indian population.

Methods:
A prospective case–control study was conducted including 100 histopathologically confirmed bladder cancer patients and 100 matched controls. Data on demographic characteristics, lifestyle habits, and occupational and environmental exposures were collected. Tumor grade and stage were analyzed in relation to age and exogenous risk factors. Statistical analysis was performed using odds ratio, relative risk, and Fisher’s exact test, with significance set at p < 0.05.

Results:
The mean age of patients was 61 ± 11 years, with a male predominance (82%). Low-grade (71%) and early-stage tumors (81%) were most prevalent. However, the proportion of high-grade and advanced-stage tumors increased with advancing age. Smoking, alcohol consumption, drug use, occupational exposure, pesticide exposure, and electromagnetic radiation exposure showed significant associations with bladder cancer risk. Case-only analysis demonstrated that occupational exposure and electromagnetic radiation exposure were significantly associated with high-grade tumors, whereas other exposures showed non-significant increasing trends.

Conclusion:
Bladder cancer in this North Indian cohort is strongly associated with modifiable lifestyle and occupational risk factors, with advancing age contributing to more aggressive disease characteristics. The significant association of occupational and electromagnetic radiation exposure with high-grade tumors highlights emerging risk determinants. These findings emphasize the importance of targeted preventive strategies, improved occupational safety measures, and age-specific surveillance to reduce disease burden.