highly significantP = 0.001
The incremental decrease in cone test pass rate was highly significant over the full 36 months (χ 2 trend = 34, P = 0.001).
The incremental decrease in cone test pass rate was highly significant over the full 36 months (χ 2 trend = 34, P = 0.001).
While the mean number of holes per net, the hole index and hole area showed an increasing trend between 0 and 36 months, no more than 13% of holes were ever greater than size 2 (Tables 2 , 3 , 4 ).