Table 1

Paired t-tests of mean number of monthly HIV tests among MSM (unadjusted and adjusted) in Ottawa within years, 2008-2011
Pre-post periods Unadjusted MSM tests AdjustedaMSM tests
Mean Difference % change p-value Mean Difference % change p-value
Jan-Apr ′08 140.5 236.3
May-Aug ′08 137.5 −3.0 −2.1% 0.71 227.3 −9.0 −3.8% 0.52
Jan-Apr ′09 159.5 253.5
May-Aug ′09 147.8 −11.8 −7.4% 0.27 241.0 −12.5 −4.9% 0.34
Jan-Apr ′10 167.3 263.3
May-Aug ′10 180.0 12.8 7.6% 0.48 271.8 8.5 3.2% 0.66
Jan-Apr ′11 179.5 285.8
May-Aug ′11 184.0 4.5 2.5% 0.66 291.0 5.3 1.8% 0.68

Source: Public Health Laboratory. Public Health Ontario. Extracted April 23, 2012.

aAdjusted for unknown region, unknown sex and unknown exposure category using LEP.

O’Byrne et al.

O’Byrne et al. BMC Public Health 2013 13:94   doi:10.1186/1471-2458-13-94

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