Table 2.

Results of a Homophily Test for the Demographic Characteristics of Telephone RDS Participants Compared With Internet RDS Participants, Bogotá, Colombia, 2020

Variable and RDS Strategy	No. of Persons	Sample Size (No.)	Point Estimate, %	95% CI	Estimated Design Effect (SE)	Recruitment Homophily	Population Homophily
Female sex
Phone	302	175	62.2	52.5, 71.8	3.1 (4.95)	1.19	1.20
Internet	298	220	72.2	63.8, 80.5	2.7 (4.27)	1.08	1.05
Living with a partner (yes)
Phone	302	180	58.1	49.5, 66.6	2.4 (4.35)	1.07	1.06
Internet	297	133	40.9	32.5, 49.3	2.3 (4.29)	1.27	1.35
Civil status
Phone	297
Divorced, separated, or widowed		12	3.5	0, 7.0	3.0 (1.82)	1.08	1.02
Married or in a civil union		91	28.8	21.1, 36.6	2.2 (3.94)	1.08	1.06
Single		194	67.7	60.1, 75.2	2.0 (3.84)	1.08	1.09
Internet	293
Divorced, separated, or widowed		6	1.0	0, 2.3	1.5 (0.70)	1.11	0.83
Married or in a civil union		59	18.4	11.6, 25.3	2.4 (3.49)	1.11	1.27
Single		228	80.6	73.7, 87.5	2.3 (3.54)	1.11	1.39
Low educational level (secondary school or less)
Phone	302	65	28.0	20.9, 35.1	2.0 (3.63)	1.04	1.03
Internet	299	89	37.8	31.4, 44.1	1.3 (3.25)	1.10	1.16
Legal status
Phone	295
Irregulara		131	50.9	41.8, 59.9	2.5 (4.61)	1.22	1.29
Regular/refugee/seeking asylumb		164	49.1	40.1, 58.2	2.5 (4.61)	1.22	1.29
Internet	282
Irregular		147	52.6	42.9, 62.2	2.7 (4.92)	1.22	1.14
Regular/refugee/seeking asylum		130	47.4	37.8, 57.1	2.7 (4.92)	1.22	1.14

Abbreviations: CI, confidence interval; RDS, respondent-driven sampling; SE, standard error.

^a Irregular legal status refers to persons who were undocumented.

^b Regular legal status refers to persons with documentation, such as that related to temporary protected status or a visa.