Table 1.

Percentages of providers in small MLE SMR category (the bottom 25%), moderate MLE SMR category (the middle 50%), and large MLE SMR category (the upper 25%) for each provider stratum with strata defined by total follow-up patient-years.

Provider size	Upper 25%	Middle 50%	Upper 25%	No. of providers
>10	60	10	30	429
10-20	30	32	38	367
20-30	25	43	31	417
30-40	19	54	28	340
40-50	28	57	19	350
50-60	19	62	19	290
60-70	17	60	23	254
70-80	17	59	24	204
80-90	15	66	20	151
90-100	15	68	17	139
100-130	11	74	15	235
130-170	12	66	21	161
170-250	12	74	14	73
≥250	0	87	13	15