highly significantp < 0.0005
1 ; the proportion of urban cases declined over the years, which was also found to be highly significant (Cochrane-Armitage x 2 = 123.064, df = 1, p < 0.0005).
1 ; the proportion of urban cases declined over the years, which was also found to be highly significant (Cochrane-Armitage x 2 = 123.064, df = 1, p < 0.0005).