Table 4: Frequencies and adjusted odds ratios (ORs) and 95% confidence intervals (CIs) for chlamydial elementary bodies optical-density (OD) units, in case and control subjects stratified by age.

OD unitsCase subjectsControl subjectsOR (95% CI)

Age 24–49<0.1069821.0
0.10–0.19932420.9 (0.5–1.6)
0.20–0.39918370.6 (0.3–1.1)
≥0.4016430.4 (0.2–0.9)

Trend = .007

Age 50–56<0.10551031.0
0.10–0.19922470.9 (0.5–1.6)
0.20–0.39915201.4 (0.7–3.0)
≥0.4019380.9 (0.5–1.8)

Trend = .908

Age 57–66<0.1058881.0
0.10–0.19941381.6 (0.9–2.8)
0.20–0.39919310.9 (0.5–1.8)
≥0.4011300.6 (0.3–1.2)

Trend = .227

Age ≥67<0.1066691.0
0.10–0.19943461.0 (0.6 –1.7)
0.20–0.39921250.9 (0.4 –1.7)
≥0.4016270.6 (0.3 –1.3)

Trend = .217