Table 1

File example of individual records
Patient_ID Sex d_group d_age i_month i_year f_month f_year Status Follow_up
1 1 Lung 84 3 1995 3 1995 1 0.08
2 1 Lung 65 2 1995 12 1999 1 0.83
3 1 Lung 63 3 1995 5 1999 1 4.17
194 2 Lung 72 2 1995 8 1995 1 0.50
195 2 Lung 42 9 1995 11 1995 1 0.17
196 1 Lung 72 10 1995 1 1996 1 0.25
197 1 Lung 52 5 1995 12 2008 0 12.58
198 1 Lung 79 1 1996 9 1997 1 1.67
6087 1 Larynx 59 6 2000 8 2004 1 4.17
6088 2 Larynx 68 7 2001 8 2004 1 3.08
6089 2 Larynx 53 3 2000 12 2006 0 6.75
6090 1 Larynx 87 7 1995 12 2006 0 11.42
12989 1 Kidney 50 7 2002 5 2003 1 0.83
12990 2 Kidney 90 7 2003 7 2003 1 0.08
12991 1 Kidney 49 6 2004 6 2004 1 0.08
12992 1 Kidney 67 4 2004 6 2004 1 0.08

Esteban et al.

Esteban et al. BMC Public Health 2013 13:201   doi:10.1186/1471-2458-13-201

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