Table 1.

Baseline characteristics of MM patients by treatment status

TX status	NOTX		TX		Total		P‐Value
	N	Row %	N	Row %	N	Row %
	542	22	1935	78	2477	100
	N	Col%	N	Col%	N	Col%
Age
66‐69	57	15	317	85	374	15	<.01
70‐74	112	18	511	82	623	25
75‐79	104	17	495	83	599	24
80‐84	120	25	365	75	485	20
85+	149	38	247	62	396	16
Sex
Male	252	46	932	48	1184	49	.49
Female	290	54	1003	52	1293	51
Race
Non‐Hispanic White	398	73	1528	79	1926	78	<.01
Other	144	27	407	21	551	22
Marital status
No indication	338	62	941	49	1279	50	<.01
Married	204	38	994	51	1198	50
Region
W (West)	206	38	849	44	1055	42	<.01
NE (Northeast)	133	25	333	17	466	19
MW (Midwest)	62	11	286	15	348	14
S (South)	141	26	467	24	608	25
Diagnosis year
2007	111	20	337	17	448	18	.59
2008	96	18	359	19	455	18
2009	106	20	381	20	487	20
2010	118	22	444	23	562	23
2011	111	20	414	21	525	21
Poor performance indicator
No	264	49	1141	59	1405	58	<.01
Yes (Confirmed)	278	51	794	41	1072	42
Medicare and medicaid dual eligibility
Not dual eligibility	348	64	1395	72	1743	72	<.01
Dual eligibility	194	36	540	28	734	28
CCI 12 months prior diagnosis
0 or miss	150	28	798	41	948	40	<.01
1	107	20	441	23	548	22
2+	285	52	696	36	981	38

Bold faced numbers are statistically significant at the 95% level.

N = number of patient.