Table II.

Validity stratified by time to pregnancy and pregnancy outcome.

	TTP ≤6 cycles (n=52)			TTP >6 cycles (n=10)
	Kappa	Kappa [95% CI]	% Agreement	Kappa	Kappa [95% CI]	% Agreement	Kappa	Kappa [95% CI]	% Agreement
Cigarette smoking	0.57	[0.25, 0.89]	90	0.44	[0.01, 0.88]	70
Fish consumption	0.36	[0.08, 0.64]	76	0.55		78
Caffeine consumption	0.27	[−0.07, 0.61]	85	--*		90
Vitamin usage	--	--	70	--		78
Alcohol consumption	0.16	[0.01, 0.30]	48	--		60
	Live Birth (n=49)			Pregnancy Loss (n=13)			No Conception (n=9)
Cigarette smoking	0.59	[0.33, 0.85]	86	--	--	92	0.27	[−0.19, 0.73]	67
Fish consumption	0.55	[0.28, 0.83]	83	0.03	[−0.39, 0.44]	54	−0.17	[−0.42, 0.08]	67
Caffeine consumption	0.33	[−0.07, 0.74]	88	--	--	77	--	--	89
Vitamin usage	--	--	73	--	--	67	--	--	100
Alcohol consumption	0.13	[−0.02, 0.28]	47	0.32	[−0.03, 0.66]	62	0.61	[−0.06, 1.00]	89

^*-- not calculable because either row or column totals were 0 upon stratification.