Table 1 The formulae and explanations for calculation of the citing indices
From: Analysis of the Status of Chinese clinical practice guidelines development
index | formula | explanation for character |
|---|---|---|
immediacy index | = C1/A | ‘C1’ means the number of times that all the guidelines were cited in the year when published for the first time. |
‘A’ means the total number of guidelines in the year when published for the first time (the year is the same as one of C1). | ||
high cited rate | = G1/N | ‘G1’ means the number of guidelines that were highly cited |
‘G2’ means the number of guidelines that were never cited | ||
never been cited rate | = G2/N | ‘C2’ means the number of cited times of all the guidelines being collected for citation analysis. |
average citation rate | = C2/N | ‘N’ means the number of all the guidelines being selected for citation analysis |