Variable | Number of episodes* | Rate Ratio (95% CI)† | p Value χ2 for trend | |||||||
1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | |||
Diagnosis | ||||||||||
Chlamydia | 42 | 86 | 57 | 73 | 117 | 164 | 111 | 151 | 3.6 (2.55 to 5.06) | <0.0001 |
Gonorrhoea | 23 | 57 | 40 | 76 | 124 | 159 | 108 | 152 | 6.61 (4.26 to 10.25) | <0.0001 |
Syphilis | 0 | 0 | 1 | 1 | 4 | 10 | 11 | 22 | 22 (2.97 to 163.2) | <0.0001 |
Herpes | 82 | 91 | 98 | 83 | 103 | 122 | 142 | 141 | 1.72 (1.31 to 2.26) | <0.0001 |
Warts | 197 | 217 | 231 | 229 | 248 | 304 | 254 | 314 | 1.59 (1.33 to 1.90) | <0.0001 |
Total | 344 | 451 | 427 | 462 | 596 | 759 | 626 | 780 | 2.27 (2.00 to 2.57) | <0.0001 |
Sex | ||||||||||
Female | 133 | 175 | 159 | 149 | 175 | 225 | 208 | 246 | 1.85 (1.50 to 2.28) | <0.0001 |
Male | 211 | 276 | 267 | 311 | 421 | 527 | 417 | 529 | 2.51 (2.14 to 2.94) | <0.0001 |
Age group (years) | ||||||||||
45–49 | 180 | 192 | 185 | 195 | 249 | 326 | 278 | 381 | 2.12 (1.77 to 2.53) | <0.0001 |
50–54 | 82 | 134 | 128 | 132 | 179 | 187 | 179 | 208 | 2.54 (1.96 to 3.27) | <0.0001 |
55–59 | 33 | 55 | 66 | 66 | 80 | 114 | 97 | 105 | 3.18 (2.15 to 4.70) | <0.0001 |
60+ | 49 | 70 | 48 | 69 | 88 | 132 | 72 | 86 | 1.76 (1.24 to 2.50) | <0.0001 |
*Any differences between totals are due to missing information.
†RR: 2003 compared to 1996, or first year where a value was available.