Table II.
Prevalence of clinical symptoms of hyperandrogenaemia, polycystic ovary syndrome (PCOS) and infertility problems at 26 years of age in girls with or without menstrual irregularity at 16 years.
| Menstrual irregularity at 16 years | Na | Clinical symptoms of hyperandrogenaemia, PCOS and infertility problems at 26 years |
P-value | |
|---|---|---|---|---|
| No menstrual irregularity (N/%) | Menstrual irregularity (N/%) | |||
| No | 1236 | 972/78.6 | 264/21.4 | |
| Yes | 475 | 334/70.3 | 141/29.7 | <0.001 |
| No PCOS (N/%) | PCOSb (N/%) | |||
| No | 1214 | 1163/95.8 | 51/4.2 | |
| Yes | 475 | 425/89.5 | 50/10.5 | <0.001 |
| No PCOS diagnosis (N/%) | PCOS diagnosis (N/%) | |||
| No | 1214 | 1196/98.5 | 18/1.5 | |
| Yes | 475 | 447/94.1 | 28/5.9 | <0.001 |
| Non-symptomatic (N/%) | Menstrual irregularity and hirsutism (N/%) | |||
| No | 1214 | 1180/97.2 | 34/2.8 | |
| Yes | 475 | 446/93.9 | 29/6.1 | 0.001 |
| No hirsutism (N/%) | Hirsutism (N/%) | |||
| No | 1142 | 994/82.7 | 198/17.3 | |
| Yes | 445 | 352/79.1 | 93/20.9 | 0.100 |
| No acne (N/%) | Acne (N/%) | |||
| No | 1247 | 782/62.7 | 465/37.3 | |
| Yes | 482 | 292/60.6 | 190/39.4 | 0.413 |
| No infertility problems (N/%) | Infertility problems (N/%) | |||
| No | 1174 | 1125/95.8 | 49/4.2 | |
| Yes | 459 | 427/93.0 | 32/7.0 | 0.019 |
The significance test used is the Chi-squared (χ2) test.
aThe number of non-symptomatic and symptomatic women in separate analyses varies due to non-response to some items.
bWomen with either self-reported PCOS diagnosis or both menstrual irregularity and hirsutism.