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October 11, 1999

Errors in Article

Arch Intern Med. 1999;159(18):2228. doi:10.1001/archinte.159.18.2228

In the Original Investigation titled "Changes in Resource Use and Outcomes for Patients With Migraine Treated With Sumatriptan," published in the April 26 issue of the ARCHIVES (1999;159:857-863), several errors were inadvertently printed. The corrections appear below, with corrected terms in italic typeface.

Errors in Chronology. On page 859, the third sentence in the first paragraph of the "Medical Claims" subsection of "Health Care Resource Use" should have read as follows:

There were statistically significant decreases in the number of migraine-related visits to primary care providers and to the emergency department for treatment of migraine in the 6 months after sumatriptan (P<.05) (Table 1).

The fifth sentence in that same paragraph should have read as follows:

When the claims data were analyzed by the number of medical procedures (such as computed tomography or magnetic resonance imaging) performed, there were 138 fewer migraine-related medical procedures in the 6 months after sumatriptan compared with the 6 months before sumatriptan (P<.05).

Errors in Expansion of Abbreviations. On page 860, the legends to Figure 1 and Figure 2 incorrectly state that the abbreviation RP indicates role-playing. The correct expansion of RP in both figures is role-physical.

Errors inPValues. On page 861, the legend of Figure 4 incorrectly reports 2 P values as being less than .049. They are actually less than .05 (P<.05).