Table 1.

Sample means by treatment status before and after weighting by propensity score

Prior to weighting by propensity score						After weighting by propensity score
	Chemotherapy N= 1171	Chemotherapy and Surgery N= 265	Hospice N= 199	No treatment N= 403	p value	Chemotherapy N= 1171	Chemotherapy and Surgery N= 265	Hospice N= 199	No treatment N= 403	p value
Age 65–69	29.4	40.8	17.1	30.5	<0.001	29.9	31.2	25.0	30.9	0.61
Age 70–74	30.0	31.3	18.6	26.8	0.002	28.1	29.3	28.8	27.7	0.98
Age 75–79	27.2	20.0	29.6	25.1	0.04	26.2	24.6	28.3	25.3	0.89
Age 80-up	13.5	7.9	34.7	17.6	<0.001	15.8	14.8	18.0	16.1	0.86
White	91.9	92.1	93.5	87.8	0.08	91.0	90.1	93.2	90.8	0.80
Black	≤5.0*	4.2	<5.5*	5.7	0.37	≤5.0*	6.2	<5.5*	4.3	0.85
Other minority	≤5.0	3.8	<5.5*	6.5	0.005	≤4.6	3.7	<5.5*	4.9	0.80
Elixhauser comorbidity score	5.4	4.2	6.5	5.9	<0.001	5.5	5.8	5.6	5.6	0.97
Charlson comorbidity score	0.5	0.4	0.6	0.5	0.06	0.5	0.6	0.5	0.5	0.73
Charlson score 0	68.2	73.2	59.3	64.8	0.009	67.8	65.3	63.8	65.8	0.73
Charlson score 1	21.9	19.2	28.6	23.6	0.11	22.0	21.4	25.4	23.2	0.80
Charlson score 2+	9.9	7.5	12.1	11.7	0.24	10.2	13.3	10.8	11.0	0.83
Stage 3	71.5	78.5	70.9	76.7	0.03	73.4	72.9	71.0	74.1	0.94
Stage 4	28.5	21.5	29.1	23.3	0.03	26.6	27.1	29.0	25.9	0.94
Serous adenocarcinoma	85.4	81.9	85.4	80.1	0.08	83.7	82.9	84.3	82.8	0.97
Grade 1 or 2	17.4	16.6	23.1	18.6	0.30	18.1	19.1	17.9	18.1	0.99
Grade 3 or 4	67.0	69.8	58.8	68.0	0.08	67.0	65.2	67.5	67.1	0.97
Grade unknown	15.5	13.6	18.1	13.4	0.41	14.8	15.7	14.6	14.8	0.99
Northeast	20.9	17.7	12.6	22.8	0.004	20.1	16.9	15.2	20.0	0.40
South	15.4	12.5	18.6	15.1	0.34	15.4	15.2	17.4	15.9	0.94
Midwest	17.0	15.5	26.1	10.9	<0.001	16.5	17.6	17.9	16.8	0.96
West	46.3	52.8	42.2	50.9	0.05	47.6	48.5	47.6	47.3	1.00
Urban	54.1	56.2	44.7	59.3	0.008	54.3	55.3	55.9	53.4	0.96
Suburban	36.1	34.7	40.7	34.5	0.49	36.3	35.5	35.6	36.0	1.00
Rural	9.8	9.1	14.6	6.2	0.01	9.4	9.2	8.5	10.6	0.91
Zip code median income in $10,000 (Census 2000)	5.1	5.2	4.7	5.3	0.01	5.2	5.2	5.0	5.1	0.94

^*Cell size <11