Table 5 Distribution by O and other blood types for present menstruation
Variables | Blood Type | P-value* | |
|---|---|---|---|
O | Others | ||
Present regularity of menstruation | 0.459 | ||
No | 71 (75.53%) | 154 (79.38%) | Â |
Yes | 23 (24.47%) | 40 (20.62%) | Â |
Present duration of menstruation | 0.258 | ||
< 10 days | 86 (98.85%) | 182 (95.29%) |  |
≥ 10 days | 1 (1.15%) | 9 (4.71%) |  |
Present level of menstruation | 0.014 | ||
Light | 20 (22.22%) | 68 (34.69%) | Â |
Normal | 59 (65.56%) | 119 (60.71%) | Â |
Heavy | 11 (12.22%) | 9 (4.59%) | Â |