Table 3.

Statistical analysis

Location	Data Structure	Type of Test	Comparison	95% confidence interval
a	Non-normally distributed	t test	Vehicle vs. PGE₂	–0.6862 to –0.2728
b	Non-normally distributed	t test	PGE₂ vs. PGE₂ + APDC	0.1317 to 0.618
	Non-normally distributed	t test	Vehicle vs. PGE₂ + APDC	–0.2736 to 0.06428
c	Non-normally distributed	t test	Vehicle vs. PGE₂	–0.5774 to –0.2563
d	Non-normally distributed	t test	PGE₂ vs. PGE₂ + APDC	–0.4204 to 0.2717
	Non-normally distributed		Vehicle vs. PGE₂ + APDC	–0.7953 to –0.1871
e	Non-normally distributed	Regression	Vehicle vs. PGE₂ vs. PGE₂ + APDC	–0.1178 to 0.1284
f	Categorical	Chi-squared^a		0.5621 to 0.8235
g	Mouse: non-normally distributed	t test	Mouse vs. human	–15.17 to –13.08
	Human: normally distributed
h	Categorical	Chi-squared^a		2.653 to 4.769
i	Categorical	Chi-squared^a		1.846 to 3.855
j	Categorical	Chi-squared^a		1.047 to 1.967