1 | Trial period (July 1993 - June 1995) | ||||||||
---|---|---|---|---|---|---|---|---|---|

2 | |||||||||

3 | Approximate start date | 7/1/1993 | |||||||

4 | Approximate end date | 6/1/1995 | |||||||

5 | |||||||||

6 | Treatment | Control | |||||||

7 | Age at baseline | Individuals at risk | Deaths | Deaths per 1000 person-years | Person-years | Individuals at risk | Deaths | Deaths per 1000 person-years | Person-years |

8 | < 6 months | 1120 | 86 | 42.1 | 2042.755344 | 1195 | 111 | 52.3 | 2122.370937 |

9 | 6-11 months | 1085 | 66 | 33.3 | 1981.981982 | 1074 | 89 | 46.5 | 1913.978495 |

10 | 1 year | 1527 | 57 | 19.7 | 2893.401015 | 1530 | 69 | 23.8 | 2899.159664 |

11 | |||||||||

12 | Treatment | Control | |||||||

13 | Deaths in children less than 2 years old | 209 | 269 | ||||||

14 | Person-years for children less than 2 years old | 6918 | 6936 | ||||||

15 | Deaths per 1000 person-years | 30.2 | 38.8 | ||||||

16 | Difference in deaths per 1000 person-years | -8.6 | |||||||

17 | Standard error for the difference in deaths per person-year | 0.003 | |||||||

18 | Lower bound of the 95% CI for the difference in deaths per person-year | -0.015 | |||||||

19 | Upper bound of the 95% CI for the difference in deaths per person-year | -0.002 | |||||||

20 | Years in trial period | 1.9 | |||||||

21 | Difference in deaths per 1000 person over the trial period | -16.4 | |||||||

22 | Lower bound of the 95% CI | -28.3 | |||||||

23 | Upper bound of the 95% CI | -4.6 | |||||||

24 | |||||||||

25 | Follow-up period (July 1995 - December 2000) | ||||||||

26 | |||||||||

27 | Approximate start date | 7/1/1995 | |||||||

28 | Approximate end date | 12/1/2000 | |||||||

29 | |||||||||

30 | Treatment | Control | |||||||

31 | Age at baseline | Individuals at risk | Deaths | Deaths per 1000 person-years | Person-years | Individuals at risk | Deaths | Deaths per 1000 person-years | Person-years |

32 | < 6 months | 924 | 49 | 11.2 | 4375 | 941 | 40 | 9.1 | 4395.604396 |

33 | 6-11 months | 930 | 34 | 7.5 | 4533.333333 | 869 | 30 | 7 | 4285.714286 |

34 | 1 year | 1383 | 40 | 5.5 | 7272.727273 | 1386 | 36 | 4.9 | 7346.938776 |

35 | |||||||||

36 | Treatment | Control | |||||||

37 | Deaths in children less than 2 years old | 123 | 106 | ||||||

38 | Person-years for children less than 2 years old | 16181 | 16028 | ||||||

39 | Deaths per 1000 person-years | 7.6 | 6.6 | ||||||

40 | Difference in deaths per 1000 person-years | 1.0 | |||||||

41 | Standard error for the difference in deaths per person-year | 0.001 | |||||||

42 | Lower bound of the 95% CI for the difference in deaths per person-year | -0.001 | |||||||

43 | Upper bound of the 95% CI for the difference in deaths per person-year | 0.003 | |||||||

44 | Years in trial period | 5.4 | |||||||

45 | Difference in deaths per 1000 person over the trial period | 5.4 | |||||||

46 | Lower bound of the 95% CI | -4.6 | |||||||

47 | Upper bound of the 95% CI | 15.3 |

1 | Data | Table, @Binka et al 2002@, Pg. 598 |
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2 | Method of calculating the confidence intervals | Aschengrau and Seage 2014, Pg. 339 (http://bit.ly/1NIBoGK) |