create_op_visual: Create older people indicators dataframe for visual...

View source: R/01-opIndicators.R

create_op_visualR Documentation

Create older people indicators dataframe for visual impairment from survey data collected using the standard RAM-OP questionnaire.

Description

Create older people indicators dataframe for visual impairment from survey data collected using the standard RAM-OP questionnaire.

Usage

create_op_visual(svy)

Arguments

svy

A dataframe collected using the standard RAM-OP questionnaire

Value

A tibble of older people indicators on visual impairment

Visual impairment by "Tumbling E" method

The "Tumbling E" method is described in:

Taylor HR (1978). Applying new design principles to the construction of an illiterate E Chart. Am J Optom & Physiol Optics 55:348

poorVA

Poor visual acuity (correct in < 3 of 4 tests)

Author(s)

Mark Myatt

Examples


# Create visual impairment indicators dataset from RAM-OP survey data
# collected from Addis Ababa, Ethiopia
create_op_visual(testSVY)


rapidsurveys/oldr documentation built on April 15, 2024, 11:18 a.m.