Table 3.
Results from Joinpoint regressions for invasive and in situ breast cancer among non-Hispanic white women aged 50 to 74 years by county rural/urban and poverty status, 1997 to 2004 (NAACCR, CINA Deluxe).
| Trend time period | Quarterly % change | 95% CI | |
| Invasive | |||
| Overall | Q1 1997 to Q2 1998 | +1.2 | +0.04 to +2.4 |
| Q2 1998 to Q2 2002 | -0.2 | -0.4 to +0.1 | |
| Q2 2002 to Q1 2003 | -3.6 | -8.5 to +1.6 | |
| Q1 2003 to Q4 2004 | -0.4 | -1.1 to +0.4 | |
| Rural/urban status | |||
| Urban | Q1 1997 to Q2 1998 | +1.2 | +0.04 to +2.4 |
| Q2 1998 to Q2 2002 | -0.2 | -0.2 to +0.1 | |
| Q2 2002 to Q1 2003 | -3.9% | -9.1 to +1.6 | |
| Q1 2003 to Q4 2004 | -0.4 | -1.1 to +0.4 | |
| Suburban | Q1 1997 to Q1 2000 | +0.6 | -0.02 to +1.2 |
| Q1 2000 to Q4 2004 | -0.8 | -1.1 to -0.5 | |
| Rural | Q1 1997 to Q4 1999 | +0.7 | -0.1 to +1.5 |
| Q1 1999 to Q4 2004 | -0.8 | -1.1 to -0.5 | |
| County Poverty Level | |||
| Low-poverty counties (<10% below FPL) | Q1 1997 to Q2 1998 | +1.5 | -0.2 to +3.2 |
| Q2 1998 to Q1 2003 | -0.3 | -0.6 to +0.1 | |
| Q2 2002 to Q1 2003 | -3.6 | -10.2 to +3.3 | |
| Q1 2003 to Q4 2004 | -0.3 | -1.2 to +0.8 | |
| Middle-poverty counties (10 to 19.9% below FPL) | Q1 1997 to Q1 1999 | +0.6 | +0.1 to +1.2 |
| Q1 1999 to Q2 2002 | -0.2 | -0.5 to +0.1 | |
| Q2 2002 to Q1 2003 | -3.8 | -8.8 to +1.5 | |
| Q1 2003 to Q4 2004 | -0.4 | -1.1 to +0.3 | |
| High-poverty counties (20+% below FPL) | Q1 1997 to Q2 1998 | +1.5 | -0.7 to +3.7 |
| Q2 1998 to Q4 2004 | -0.7 | -0.9 to -0.5 | |
| In situ | |||
| Overall | Q1 1997 to Q2 1999 | +2.5 | +1.8 to +3.1 |
| Q2 1999 to Q4 2001 | +0.4 | -0.2 to +1.1 | |
| Q4 2001 to Q4 2004 | -0.6 | -1.0 to -0.2 | |
| Rural/urban status | |||
| Urban | Q1 1997 to Q2 1999 | +2.3 | +1.5 to +3.1 |
| Q2 1999 to Q4 2001 | +0.4 | -0.2 to +1.1 | |
| Q4 2001 to Q4 2004 | -0.7 | 1.1 to -0.3 | |
| Suburban | Q1 1997 to Q3 1999 | +3.6 | +2.0 to +5.2 |
| Q3 1999 to Q4 2004 | -0.01 | -0.4 to +0.4 | |
| Rural | Q1 1997 to Q2 2000 | +2.8 | +1.0 to +4.6 |
| Q2 2000 to Q4 2004 | -0.1 | -1.0 to +0.8 | |
| County poverty level | |||
| Low-poverty counties (<10% below FPL) | Q1 1997 to Q2 1998 | +3.2 | +2.0% to +4.5 |
| Q2 1998 to Q1 2002 | +0.4 | -0.04 to +0.8 | |
| Q1 2002 to Q1 2004 | -1.0 | -1.9 to -0.2 | |
| Q1 2004 to Q4 2004 | +5.0 | -2.5 to +13.2 | |
| Middle-poverty counties (10 to 19.9% below FPL) | Q1 1997 to Q1 2000 | +2.1 | +1.6 to +2.7 |
| Q1 2000 to Q4 2004 | -0.0.3 | -0.6 to -0.3 | |
| High-poverty counties (20+% below FPL) | Q1 1997 to Q4 1998 | +4.9 | +0.9 to +9.1 |
| Q4 1998 to Q4 2004 | -0.04 | -0.6 to +0.5 | |
CI = confidence interval; FPL = federal poverty level; Q = quarter