Development and feasibility of a set of quality indicators relative to the timeliness and organisation of care for new breast cancer patients undergoing surgery

Table 2 QI conformity scores and discriminatory power

	Hospitals (N)	Mean conformity score^a% (range)	Standard Deviation	Discriminatory power (Gini coefficient)
QI 1	Not applicable
QI 2	49	58.2 (17.4–90.9)	21.5	0.19
QI 3	47	60.4 (1.4–98.7)	28.9	0.26
QI 4	39	84.5 (26.5–100)	15.9	0.08
QI 5	39	47.5 (11.2–91.5)	19.9	0.24
QI 6	54	12.8 (0–100)	25.3	0.73
QI 7	54	70.3 (4–98.7)	25.7	0.19
QI 8	54	46 (0–100)	44.7	0.44

^a Mean percentage of patients with medical records that met the criteria outlined in Table 1. There was significant divergence (<0.001) from expected performance for each QI.

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