Table 3.

Comparison of the Time of Onset of AIA and the Time Since LMP

	Onset (months)			Onset (months)
Background	≦6	6 <	P-value	≦6	12-Jul	13≦	P-value
	n = 66	n = 48		n = 66	n = 28	n = 20
Time since LMP (yrs)			p = 0.036*				p = 0.032**
< 5	24	8		24	7	1
10-May	22	16		22	7	9
10 <	20	24		20	14	10

AIA: aromatase inhibitor related arthralgia; LMP: last menstrual period;

*Chi-square test; **Fisher's exact test.