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Table 1 Codes assign and their explanation

From: Barriers in participant recruitment of diverse ethnicities in the state of Kuwait

Codes

Explanations

101

No answer

102

Busy ring tone

104

Answering machine

106

Switched off

107

Other problem

111

Participant will call back the caller on specific time

112

Participant will call back the caller at unspecified time

131

Language barrier

132

Needs tracing (person has moved to other place)

151

Final Refusal by participant during calling

171

Final no contact

172

Unlocatable

173

Unavailable (not present)

180

No such person

181

Final ineligible

183

No proxy available (too young)

191

Final other problem

204

Not home

211

Participant will call back the interviewer on specific time

212

Participant will call back the interviewer at unspecified

251

Final refusal by participant who failed to turned up after booking an appointment

281

Final ineligible

291

Final other problem