Table 2.

Propensity score matching by demographics: a mortality rate, associated X-squared and p-value in each iteration.

Cohort	Permutation	N deceased	N total	Mortality rate	Chi-squared	P-value
on Statin	1	369	2,297	16.06%	4.05	0.0443
control	1	829	4,594	18.05%
on Statin	2	369	2,297	16.06%	5.36	0.0206
control	2	843	4,594	18.35%
on Statin	3	369	2,297	16.06%	4.31	0.0378
control	3	832	4,594	18.11%
on Statin	4	369	2,297	16.06%	5.56	0.0183
control	4	845	4,594	18.39%
on Statin	5	369	2,297	16.06%	4.50	0.0340
control	5	834	4,594	18.15%
on Statin	6	369	2,297	16.06%	4.13	0.0420
control	6	830	4,594	18.07%
on Statin	7	369	2,297	16.06%	4.31	0.0378
control	7	832	4,594	18.11%
on Statin	8	369	2,297	16.06%	4.22	0.0399
control	8	831	4,594	18.09%
on Statin	9	369	2,297	16.06%	3.79	0.0516
control	9	826	4,594	17.98%
on Statin	10	369	2,297	16.06%	5.56	0.0183
control	10	845	4,594	18.39%

Bold indicates p < 0.05.