Groups 1 2 3 N Perceived vulnerability mean score SD 1 - -99 -5.82* 16 28.75 7.05 2   - -4.83* 256 39.74 6.82 3     - 30 34.57 7.67 Total       302 30.17 7.05

Table 4: Scheffe comparison for the influence of condom use on perceived vulnerability (PV) score. Key * p < 0.05. Group 1 = No response; 2 = Non condom users; 3 = Condom users