Crowding--a risk factor for perinatal mortality?

Crowding is known to be associated with an increased risk of infant and child morbidity and mortality particularly due to infections. We examined the association of crowding with perinatal mortality. Our results indicated a paradoxical relationship with the least crowded households showing the highest perinatal mortality (7.7% as compared to 4.7%). However, further analysis indicated that the observed paradoxical relationship is a spurious one, largely explained by the confounding effect of gravidity.