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Table 2 Cohort follow-up by age in years to event, death, or censor, ALCANLink 2009 (n = 1235)

From: Quantifying sources of bias in longitudinal data linkage studies of child abuse and neglect: measuring impact of outcome specification, linkage error, and partial cohort follow-up

 

[0–1)

[1–2)

[2–3)

[3–4)

[4–5)

[5–6)

 

N

%w

N

%w

N

%w

N

%w

N

%w

N

%w

Follow-Up

 Subjects entering age interval outcome free

1235

(100)

1017

(84.7)

917

(75.1)

831

(68.5)

747

(61.8)

674

(56.5)

 Person-years accrued in interval

1118.4

(92.6)

968.3

(94.5)

871.3

(95.7)

788.7

(94.9)

708.6

(95.5)

325.2

(49.2)

Censoring

 Competing deaths

16

(77.8)

0

0

0

0

1

(11.1)

1

(11.1)

0

(0)

 Loss to follow-up

67

(26.5)

45

(25.3)

37

(14.0)

41

(17.9)

36

(13.4)

11

(2.9)

Outcome Ascertainment

 First multi-source reporta

135

(39.1)

54

(18.7)

48

(15.5)

42

(12.8)

36

(10.6)

12

(3.4)

 CPS only report

131

(38.2)

53

(18.9)

48

(16.0)

41

(13.1)

34

(10.3)

12

(3.5)

  1. amulti-source report is the first report of maltreatment to either Child Protective Services, Child Advocacy Center, Anchorage Police Department, or the Maternal Child Death Review
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Injury Epidemiology

ISSN: 2197-1714