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Table 4 Results of cleaned 16,440 datasets after three rounds of K-means clustering analysis

From: Adherence predictor variables in AIDS patients: an empirical study using the data mining-based RFM model

Samples

Number of constructed models

Clustering number (type)

Model quality

Predictor variable importance

16,440

1st round

6

0.5

R = 1 m = 1 F = 1

11,585

2nd round

6

0.7

R = 1 m = 1 F = 1

10,614

3rd round

5

0.8

R = 1 m = 1 F = 0.0563

  1. R: Recency; F: Frequency; m: average medical costs per visit. Values lie in the 0–1 range