Identified segment | Join-point | Intercept | Slope | ||
---|---|---|---|---|---|
 |  | Intercept£ |  95% CI | QPC^ |  95% CI |
April 1994-April 1997 |  | 0.3 | (0.15-0.47) | −1.7¥ | (−3.9–0.5) |
April 1997-July 2005 | Q 13 | 0.15‡ | (0.02-0.28) | 3.8‡ | (3.4–4.2) |
July 2005-October 2009 | Q 46 | 0.03 | (−0.47-0.53) | 7.4‡ | (6.4–8.5) |
October 2009-January 2010 | Q 59 | 62.1‡ | (59–64.9) | −5.5‡ | (−9.9--0.9) |
January 2010-January 2011 | Q 64 | 0.01 | (−4.5-4.5) | 8.2‡ | (0.9-16) |
January 2011-March 2012 | Q 68 | 6‡ | (3.1-8.9) | −1.4 | (−5.5–2.9) |