UPDATE: Boston Marathon Tragedy: Latest Injury Count Released More than One Week after Bombings

AnalysisWire previously charted Boston Marathon injuries over time.  The Boston Globe just reported that the injury count has risen to 282 (it was originally reported at 4:00 pm April 22 by reporter Deborah Kotz on Twitter) .

Our conclusions are updated as follows:

  • Total injuries were DOUBLE what they were reported by the end of the first day of the attack.
  • Total injuries were 50% higher than they had been reported in the week after the attack

We have re-generated our reported injuries over time chart here:

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Original Chart:

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Methodology

We went through the live blog at Boston.com of the event: http://live.boston.com/Event/Live_blog_Explosion_in_Copley_Square for all mentions of injury totals. The following rules were applied:

  • If injury counts were lower than previously-reported injury counts, they were ignored
  • If a range was given, the smaller number is charted
  • The times of the original tweets on Twitter were used, not when they were posted to Boston.com
  • Hospital-specific totals were not used
  • Occasionally, we ran across other reports about injury counts not from the Boston Globe (for example, tweets from the same individual that weren’t posted to the Boston.com live blog).  For the sake of accuracy, we included these tweets and noted them below.
  • We stopped our analysis at the end of April 22nd, as we hit the upper limit of injury totals reported.  282 is the maximum injury count we were able to find.

Sources (see more)

Date and Time Description Source
4/15/13 2:50 PM Time of explosion (2:50 pm) BPD Twitter (Bureau Chief, Public Info)
4/15/13 3:29 PM 15 – 20 injured Boston.com Live Blog
4/15/13 3:58 PM 2 fatalities Boston.com Live Blog
4/15/13 4:01 PM 2 dead, 22 injured BPD Twitter (Bureau Chief, Public Info)
4/15/13 4:06 PM 2 dead, 23 injured BPD Twitter (Bureau Chief, Public Info)
4/15/13 4:16 PM 2 dead, 28 injured Boston.com Live Blog
4/15/13 5:06 PM 37 – 39 injured Boston.com Live Blog
4/15/13 5:08 PM More than 100 injured Boston.com Live Blog
4/15/13 6:10 PM 107 injured Boston.com Live Blog
4/15/13 7:20 PM 120 injured Boston Globe Reporter Twitter (not in live blog)
4/15/13 8:06 PM 125 injured Boston Globe Reporter Twitter (similar tweet in live blog at 8:17 pm)
4/15/13 8:18 PM At least 134 injured AP Twitter
4/15/13 10:09 PM 140 injured Boston Globe Reporter Twitter
4/16/13 9:41 AM More than 150 injured Boston Globe Reporter Twitter
4/16/13 9:43 AM 3 fatalities Boston Globe Reporter Twitter
4/16/13 10:06 AM 176 injured Boston Globe Reporter Twitter
4/16/13 4:29 PM 183 injured CNNBrk Twitter (not in live blog)
4/22/13 4:00 PM 282 injured Boston Globe Reporter Twitter (not in live blog)
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