Table 3. Data collection strategy of the working conditions surveys (WCSs) in Colombia, Argentina, Chile, Central America, and Uruguay.

	Colombia	Argentina	Chile	Central America	Uruguay
Respondents	Workers and a representative of the workplace	Workers	Workers	Workers	Workers
Place of interview	Respondent's workplace	Respondent's workplace	Respondent's home	Respondent's home	Respondent's home
Mean duration of the interview	a	35 minutes	45–60 minutesb	32 minutes	30 minutesb
Number of items	143c	292	428	146	342
Response rate (%)	79c	a	74	50–80d	a

^aInformation was not available.

^bDescribed as expected time.

^cSurvey conducted for workers.

^dPanamá, El Salvador, and Nicaragua around 80%, Honduras over 60%, and Costa Rica 50%.