Calculate Generalized Anxiety Disorder 7 (GAD-7) sum score

Source: R/primary-coding.R

Calculate GAD-7 sum score

Patients are asked "Over the last 2 weeks, how often have you been bothered by the following problems?"

calculate_gad7_sum(gad7_1, gad7_2, gad7_3, gad7_4, gad7_5, gad7_6, gad7_7)

Arguments

gad7_1

vector for item "Feeling nervous, anxious or on edge."

gad7_2

vector for item "Not being able to stop or control worrying."

gad7_3

vector for item "Worrying too much about different things."

gad7_4

vector for item "Trouble relaxing."

gad7_5

vector for item "Being so restless that it is hard to sit still."

gad7_6

vector for item "Becoming easily annoyed or irritable."

gad7_7

vector for item "Feeling afraid as if something awful might happen."

Answers were coded /w levels 0 = "Not at all", 1 = "Several days", 2 = "More than half the days" and 3 = "Nearly every day"

Value

A numeric vector with sum score of GAD-7