Table 3. Prevalence of MGUS by poverty status.

Race	No. of persons with MGUSa	Poverty status	Prevalence of MGUS (%)	Lower limit of 95% CI	Upper limit of 95% CI
Total	16	Below poverty	0.72	0.28	1.87
Total	42	Not below poverty	0.26	0.17	0.41
Whites	1	Below poverty	0.46	0.06	3.27
Whites	7	Not below poverty	0.18	0.08	0.40
Blacks	9	Below poverty	0.85	0.42	1.71
Blacks	23	Not below poverty	0.95	0.59	1.53
Mexican-American	5	Below poverty	0.32	0.12	0.82
Mexican-American	11	Not below poverty	0.51	0.30	0.86

Abbreviations: CI, confidence interval; MGUS, monoclonal gammopathy of undetermined significance.

^aBecause of missing data there are 58 persons with MGUS in this table.