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Table 1 Scabies diagnostic criteria used in study

From: Estimation of scabies prevalence using simplified criteria and mapping procedures in three Pacific and southeast Asian countries

1. Reference Standard: 2020 IACS criteria (clinical categories used in study)

 Subcategory B3: Typical lesions in a typical distribution and two history features

 Subcategory C1: Typical lesions in a typical distribution and one history features

 Subcategory C2: Atypical lesions or atypical distribution and two history features

 *History features: itch; positive contact history

2. Index Tests

 A. Simplified criteria

 Typical lesions in a typical distribution, with or without itch

 B. Alternative simplified criteria 1 (ASC1)

 At least one of:

 i. Typical lesions in a typical distribution, with or without itch

 ii. Atypical lesions in a typical distribution, with itch

 C. Alternative simplified criteria 2 (ASC2)

 At least one of:

 i. Typical lesions in a typical distribution, with or without itch

 ii. Atypical lesions in a typical distribution, with or without itch

 D. Alternative simplified criteria 3 (ASC3)

 Itch

 E. Alternative simplified criteria 4 (ASC4)

 Itch and positive contact history