Survey Results: Timing Analysis

CHART KEY

The colored bar shows the percentage of boys compared to girls for each response. However, if there are only a few responses for a question, the percentage can be misleading, so take note of the color-coding of the bar.

	100+ Responses: There are at least 100 responses to the question, so the results are probably worth paying attention to!
	10+ Responses: The lighter-colored bar shows there are between 10 and 100 responses. The results may or may not be useful.
	1+ Responses: The pale bar shows there are fewer than 10 responses, so you should probably ignore this one.

Ovulation Determined by Mother's Best Estimate

Boys	Girls	Cutoff	Results as Percentage	Odds?	%Boys vs. %Girls
6	5	-5	1.0 1.4	GIRL 58%
26	22	-4	4.3 6.0	GIRL 58%
39	37	-3	6.4 10.1	GIRL 61%
86	54	-2	14.2 14.8	GIRL 51%
133	79	-1	22.0 21.6	BOY 50%
284	125	0	46.9 34.2	BOY 58%
31	44	1	5.1 12.0	GIRL 70%
605	366	Total = 971 babies

Ovulation Determined by BBT (Basal Body Temperature) Method

Boys	Girls	Cutoff	Results as Percentage	Odds?	%Boys vs. %Girls
7	3	-5	2.8 1.9	BOY 59%
15	14	-4	5.9 8.9	GIRL 60%
21	19	-3	8.3 12.1	GIRL 59%
34	27	-2	13.4 17.2	GIRL 56%
50	33	-1	19.7 21.0	GIRL 52%
97	43	0	38.2 27.4	BOY 58%
30	18	1	11.8 11.5	BOY 51%
254	157	Total = 411 babies

Ovulation Determined by Cervical Fluid

Boys	Girls	Cutoff	Results as Percentage	Odds?	%Boys vs. %Girls
2	0	-5	1.8 0.0	BOY 100%
1	1	-4	0.9 1.1	GIRL 56%
4	3	-3	3.6 3.4	BOY 51%
6	5	-2	5.4 5.7	GIRL 51%
20	16	-1	18.0 18.2	GIRL 50%
42	24	0	37.8 27.3	BOY 58%
36	39	1	32.4 44.3	GIRL 58%
111	88	Total = 199 babies

Ovulation Determined by Cervical Changes

Boys	Girls	Cutoff	Results as Percentage	Odds?	%Boys vs. %Girls
1	1	-4	1.9 1.9	BOY 50%
1	2	-3	1.9 3.8	GIRL 66%
5	8	-2	9.6 15.1	GIRL 61%
12	7	-1	23.1 13.2	BOY 64%
15	21	0	28.8 39.6	GIRL 58%
18	14	1	34.6 26.4	BOY 57%
52	53	Total = 105 babies

Ovulation Determined by LH Surge

Boys	Girls	Cutoff	Results as Percentage	Odds?	%Boys vs. %Girls
3	2	-5	1.9 1.4	BOY 57%
4	1	-4	2.5 0.7	BOY 78%
12	16	-3	7.5 11.4	GIRL 60%
22	19	-2	13.8 13.6	BOY 50%
30	35	-1	18.8 25.0	GIRL 57%
58	37	0	36.3 26.4	BOY 58%
31	30	1	19.4 21.4	GIRL 53%
160	140	Total = 300 babies

Ovulation Determined by "O Pain"

Boys	Girls	Cutoff	Results as Percentage	Odds?	%Boys vs. %Girls
2	1	-5	1.2 0.8	BOY 60%
7	10	-4	4.3 8.1	GIRL 65%
14	17	-3	8.6 13.8	GIRL 62%
25	23	-2	15.4 18.7	GIRL 55%
35	27	-1	21.6 22.0	GIRL 50%
62	30	0	38.3 24.4	BOY 61%
17	15	1	10.5 12.2	GIRL 54%
162	123	Total = 285 babies

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