Table 1 Result of accumulative sequence with GM.

From: Predicting trend of early childhood caries in mainland China: a combined meta-analytic and mathematical modelling approach based on epidemiological surveys

Year

Original Xt (%)

Accumulative Yt (%)

1988

81.2

81.2

1989

74.2

155.4

1990

73.4

228.8

1991

83

311.8

1992

76.2

388

1993

74.2

462.2

1994

82.2

544.4

1995

66.3

610.7

1996

68.1

678.8

1997

79.5

758.3

1998

71.1

829.4

1999

56.4

885.8

2000

69.4

955.2

2001

55.1

1010.3

2002

60.9

1071.2

2003

56.8

1128

2004

55.3

1183.3

2005

66.4

1249.7

2006

63.6

1313.3

2007

62.0

1375.3

2008

61.0

1436.3

2009

60.1

1496.4

2010

55.1

1551.5

Back to article page