Table 1

 Between-group differences in response to each item (number of respondents agreeing with each item with percentages in brackets)

Scale/itemsGroup 1, no knowledge(n = 138)Group 2,STI only(n = 245)Group 3,prevalence only(n = 121)Group 4, STI and prevalence(n = 307)χ2 (df) for difference
Stigma (Agree/strongly agree)
    People would avoid me 22 (15.9)36 (14.7)8 (6.6)35 (11.4)6.8 (3), NS
    People would think badly of me32 (23.2)90 (36.7)21 (17.4)100 (32.6)18.5 (3), p<0 001
    People would blame me25 (18.1)89 (36.3)13 (10.7)106 (34.5)38.7 (3), p<0.001
    People would think I was unclean40 (29.0)81 (33.1)32 (26.4)95 (30.9)1.9 (3), NS
    People would not want to be friends with me 7 (5.1)14 (5.7)2 (1.7)9 (2.9)5.0 (3), NS
    People would not want to have a sexual relationship with me78 (56.5)168 (68.6)68 (56.2)183 (59.6)8.5 (3), p = 0.04
    People would be uncomfortable around me34 (24.6)48 (19.6)18 (14.9)41 (13.4)9.9 (3), p = 0.02
    People would be angry with me7 (5.1)25 (10.2)4 (3.3)18 (5.9)8.0 (3), p = 0.05
Shame (Quite/very)
    How responsible would you feel?44 (31.9)135 (55.1)34 (28.1)141 (45.9)33.4 (3), p<0.001
    How ashamed would you feel?22 (15.9)67 (27.3)12 (9.9)66 (21.5)17.2 (3), p = 0.001
    How embarrassed would you feel?33 (23.9)85 (34.7)16 (13.2)85 (27.7)19.7 (3), p<0.001
    How guilty would you feel?13 (9.4)61 (24.9)9 (7.4)55 (17.9)24.5 (3), p<0.001
    How disappointed in yourself would you feel?36 (26.1)93 (38.0)21 (17.4)90 (29.3)17.8 (3), p<0.001
Anxiety (Quite/very)
    How anxious would you feel?101 (73.2)179 (73.1)72 (59.5)159 (51.8)34.9 (3), p<0.001
    How scared would you feel?81 (58.7)136 (55.5)54 (44.6)118 (38.4)23.7 (3), p<0.001
    How angry would you feel?28 (20.3)71 (29.0)20 (16.5)73 (23.8)8.1 (3), p = 0.04
    People would pity me 79 (57.2)100 (40.8)57 (47.1)108 (35.2)20.4 (3), p<0.001