a significant trendp < 0.01
Furthermore, there was a significant trend comparing livestock farm living, village and city living ( p < 0.01).
Furthermore, there was a significant trend comparing livestock farm living, village and city living ( p < 0.01).
4 a, b) further revealed that growing up in a city, was associated with the highest incidence of IBD among subjects born after 1952 and the lowest incidence of IBD among the subjects born in 1952 or before; however, this difference did not reach statistical significance, incidence rate ratio 1.92 (95 % CI 0.92–4.55).