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. Author manuscript; available in PMC: 2009 Sep 16.
Published in final edited form as: Comput Stat Data Anal. 2009 Jan 15;53(3):699–706. doi: 10.1016/j.csda.2008.09.011

Table 1.

Number of zeros for each treatment

Standard medical group (n = 34) Sham acupuncture Active (n = 33) acupuncture (n = 37)
Day 1 6 6 14
Day 2 11 13 29
Day 3 9 12 27
Day 4 3 2 5
Day 5 6 14 27
Day 6 13 20 19
Day 7 18 13 19
Day 8 18 13 23
Day 9 17 17 19
Day 10 21 18 24
Day 11 23 18 22
Day 12 20 21 23
Day 13 21 23 30
Day 14 22 21 29