There might be a gender difference in reporting rates of sick building syndrome because women tend to report more symptoms than men. Along with this, some studies found that women have a more responsive immune system and are more prone to mucosal dryness and facial erythema. Also, women are alleged by some to be more exposed to indoor environmental factors, because they have a tendency to have more clerical work where they are exposed to unique office equipment and materials (example: blueprint machines), while men may more often have jobs based outside of offices.