Despite a prosperous economy and government efforts to expand coverage, the number of Americans without health insurance has grown by about 1 million since last year, according to figures released today by the US Census Bureau. More than 44 million Americans are living without coverage, including large groups of Latinos, women, young, and the underprivileged. In a disturbing trend, the number of uninsured women rose this year while the number of men did not. Analysts contribute this to the welfare reform that moved millions of poor off welfare and into jobs with low pay and no benefits. The number of children without coverage has also not changed, despite a major federal program launched in 1997 to address the problem.