Table 4 Sensitivity (95% CI), specificity (95% CI), PPV(95% CI) NPV(95% CI) of code lists for child maltreatment included sensitivity analysis of additional and exclusion of categories of indicative/at-risk codes in hospital admission data.

From: An external validation of coding for childhood maltreatment in routinely collected primary and secondary care data

 

Sensitivity

 

Specificity

 

PPVa

 

NPVa

 

Time 1b

Time 2c

Time 1b

Time 2c

Time 1b

Time 2c

Time 1b

Time 2c

Confirmed CMd

47.0 (42.8–51.3)

57.3 (53.1–61.5)

91.2 (89.7–92.5)

87.6 (85.9–89.1)

64.0 (59.1–68.7)

60.7 (56.4–64.9)

83.7 (81.9–85.4)

86.0 (84.2–87.6)

Confirmed CM and possible CM combined

67.6 (63.5–71.5)

75.9 (72.1–79.4)

88.0 (86.3–89.5)

84.2 (82.3–85.9)

65.3 (61.2–69.1)

61.7 (57.9–65.3)

89.0 (87.4–90.5)

91.3 (89.7–92.6)

  1. aPPV and NPV based on prevalence in validation population.
  2. bHospital admission or GP record within 12 months before or after index date.
  3. cHospital admission or GP record at any time.
  4. dConfirmed CM codes encompass maltreatment related syndromes, genital mutilation, and prostitutions. Note that child protection codes are not available in hospital admissions data.
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