a significant trendP < 0.0001
3 D and E ), a significant trend of decrease was found (posttest for trend, κ ̄ , **** P < 0.0001; κ ̄ , *** P = 0.0005).
3 D and E ), a significant trend of decrease was found (posttest for trend, κ ̄ , **** P < 0.0001; κ ̄ , *** P = 0.0005).