The results showed that Pearson correlation coefficient between 2 methods was 0.84 (p <0.001), and that weight kappa value was 0.44.
Kết quả so sánh cho thấy: hệ số tương quan Pearson giữa 2 phương pháp là 0,84 (p < 0,001), hệ số kappa là 0,44.