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. 2012 Dec 12;345:e8107. doi: 10.1136/bmj.e8107

Table 1.

 Factors associated with gonorrhoea infection in study cohort (n=3973)

Positive (n=100) Negative (n=3873) Odds ratio (95% CI) P
Mean age (years) 21 25 <0.001*
Symptoms suggestive of bacterial STI 57 (57) 1614 (42) 1.88 (1.22 to 2.82) 0.003†
Previous STI 46 (46) 1432 (37) 1.45 (0.96 to 2.22) 0.08†
Contact with a partner recently diagnosed with an STI 26 (26) 266 (7) 4.76 (2.92 to 7.74) <0.001†
Cervicitis diagnosis 22 (22) 196 (5) 5.29 (3.13 to 8.89) <0.001†
Pelvic inflammatory disease diagnosis 14 (14) 155 (4) 3.90 (2.07 to 7.24)
Ethnicity
 White 58 (58) 3113 (80) 0.34 (0.22 to 0.52) <0.001†
 Black 15 (15) 347 (9) 1.79 (0.98 to 3.22)§ 0.06†
 Mixed 26 (26) 271 (7) 4.67 (2.86 to 7.59)§ <0.001†
 Black and mixed 41 (41) 618 (16) 3.66 (2.39 to 5.60)§ <0.001†
 Other 1 (1) 142 (4) 0.27 (0.01 to 1.54)§ 0.27‡

Data are no (%) of women unless stated otherwise.

*Mann-Whitney U test.

†Pearson’s χ2 test with Yates correction.

‡Fisher’s exact test.

§Versus white ethnic group.