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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: J Acquir Immune Defic Syndr. 2015 May 1;69(1):85–91. doi: 10.1097/QAI.0000000000000543

Table 2.

Incidence Rate Ratios and 95% Confidence Intervals for Monthly Total Acts and Unprotected Acts

Total Acts Unprotected Acts
IRR 95% CI p IRR 95% CI p
Degree
 1 1.00 1.00
 2 2.07 1.85 – 2.33 <0.001 1.94 1.72 – 2.20 <0.001
 3 2.93 2.35 – 3.69 <0.001 2.41 1.90 – 3.11 <0.001
Male 1.06 0.99 – 1.14 0.08 0.99 0.92 – 1.07 0.85
Duration 0.99 0.99 – 1.00 <0.01 1.00 0.99 – 1.00 0.51