Table 1.
Subjects in partly overlapping subgroups according to age, parity, gender and contraception status.
| Group |
Number of subjects |
Mean age (SD) in years |
Age range |
Mean OCT signal strength(SD) |
|---|---|---|---|---|
| All participants | 107 | 42.4(11.8) | 21-63 | 6.3(1.7) |
| Males | 45 | 39.2(12.0) | 22-63 | 6.0(1.9) |
| Females | 62 | 44.7(11.2) | 21-61 | 6.5(1.6) |
| Younger* males | 29 | 31.6(6.3) | 22-42 | 6.3(2.0) |
| Younger females | 27 | 33.8(7.0) | 21-43 | 6.1(1.5) |
| Older** males | 16 | 52.9(5.9) | 44-63 | 5.4(1.5) |
| Older females | 35 | 53.0(4.7) | 44-61 | 6.7(1.6) |
| Parous women | 34 | 46.7(8.4) | 28-60 | 6.7(1.4) |
| Nulliparous womean | 23 | 40.0(14.3) | 21-61 | 6.2(1.7) |
| Women using oral contraception | 10 | 33.5(9.5) | 21-53 | 6.0(1.8) |
| Women not using oral contraception | 33 | 48.0(10.3) | 24-60 | 6.7(1.4) |
OCT: optical coherence tomography. *age ≤43 (mean age for all participants), **age >43