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. 2013 Dec 6;58(5):704–712. doi: 10.1093/cid/cit796

Table 2.

Differences Between Participants Who Provided Preexposure Prophylaxis (PrEP) Compared to Participants Who Would Provide PrEP

Characteristics Provided PrEP in Past Year, No. (%)
Total (n = 285a) P Value
No (n = 238) Yes (n = 47)
Region .89
 New England/Mid-Atlantic 58 (24.4) 10 (21.3) 68 (23.9)
 Midwest 53 (22.3) 13 (27.7) 66 (23.2)
 South 69 (29.0) 12 (25.5) 81 (28.4)
 Pacific and Mountain 56 (23.5) 12 (25.5) 68 (23.9)
 Canada 2 (0.8) 0 (0.0) 2 (0.7)
Type of employment .12
 Hospital/clinic 67 (28.2) 16 (34.0) 83 (29.1)
 Private/group practice 77 (32.4) 18 (38.3) 95 (33.3)
 University 73 (30.7) 13 (27.7) 86 (30.2)
 Federal/VA 21 (8.8) 0 (0.0) 21 (7.4)
Treated HIV patients in past year .04
 None 10 (4.2) 0 (0.0) 10 (3.5)
 1–20 31 (13.0) 4 (8.5) 35 (12.3)
 21–50 59 (24.8) 9 (19.1) 68 (23.9)
 >50 138 (58.0) 34 (72.3) 172 (60.4)
Would provide PrEP
 To MSMb (n = 268) .07
  Regardless of risk factors 22 (9.8) 10 (22.7) 32 (11.9)
  With certain risk factors 167 (74.6) 29 (65.9) 196 (73.1)
  By request 134 (59.8) 30 (68.2) 164 (61.2)
 To heterosexualsb (n = 269) .36
  Regardless of risk 12 (5.4) 5 (10.9) 17 (6.3)
  With certain risk factors 174 (78.0) 35 (76.1) 209 (77.7)
  By request 123 (55.2) 28 (60.9) 151 (56.1)
Considerations when prescribing PrEP
 To MSMb (n = 267) .40
  Reporting unprotected sex 175 (78.1) 35 (81.4) 210 (78.7)
  Reporting multiple sex partners 168 (75.0) 30 (69.8) 198 (74.2)
  With HIV partner on HAART 130 (58.0) 33 (76.7) 163 (61.0)
  With HIV partner not on HAART 201 (89.7) 37 (86.0) 238 (89.1)
  With IVDU 76 (33.9) 15 (34.9) 91 (34.1)
  Other reasons 5 (2.2) 1 (2.3) 6 (2.2)
 To heterosexualsb (n = 262) .08
  With unprotected sex 131 (60.6) 29 (63.0) 160 (61.1)
  With multiple sex partners 132 (61.1) 23 (50.0) 155 (59.2)
  With HIV partner on HAART 128 (59.3) 36 (78.3) 164 (62.6)
  With HIV partner not on HAART 198 (91.7) 37 (80.4) 235 (89.7)
  With IVDU 70 (32.4) 12 (26.1) 82 (31.3)
  Other reasons 9 (4.2) 5 (10.9) 14 (5.3)
Frequency of performing NAT in conjunction with PrEPb (n = 276) .053
 Before starting PrEP 142 (62.0) 25 (53.2) 167 (60.5)
 Only when symptoms consistent with acute HIV are present 36 (15.7) 17 (36.2) 53 (19.2)
 Monthly 9 (3.9) 3 (6.4) 12 (4.3)
 Every 3 mo 119 (52.0) 20 (42.6) 139 (50.4)
 Less frequently than 3 mo 23 (10.0) 4 (8.5) 27 (9.8)
 Never 30 (13.1) 4 (8.5) 34 (12.3)
Would measure PrEP adherence (n = 274) 206 (90.7) 40 (87.0) 246 (90.1) .42
Method of measuring PrEP adherenceb (n = 246) .75
 Self-report 186 (90.3) 37 (92.5) 223 (90.7)
 Pill counts 33 (16.0) 4 (10.0) 37 (15.0)
 Pharmacy refills 104 (50.5) 18 (45.0) 122 (49.6)
 Blood drug levels 6 (2.9) 2 (5.0) 8 (3.3)
 Other means 4 (1.9) 1 (2.5) 5 (2.0)
Frequency of measuring PrEP adherence among those who did  not respond “It depends”b (n = 218) .72
 Monthly 31 (17.1) 8 (21.6) 39 (17.9)
 Every 3 mo 121 (66.9) 25 (67.6) 146 (67.0)
 Every 6 mo 28 (15.5) 4 (10.8) 32 (14.7)
 Annually 1 (0.6) 0 (0.0) 1 (0.5)
Reasons for discontinuing PrEPb (n = 274) .36
 If adherence <80% 132 (58.1) 20 (42.6) 152 (55.5)
 If adherence <50% 76 (33.5) 17 (36.2) 93 (33.9)
 If pregnancy occurs 119 (52.4) 21 (44.7) 140 (51.1)
 If any toxicity develops 153 (67.4) 36 (76.6) 189 (69.0)
 If severe toxicity develops 130 (57.3) 22 (46.8) 152 (55.5)
 If risk behavior decreases 130 (57.3) 23 (48.9) 153 (55.8)
 If partner is virologically suppressed 80 (35.2) 10 (21.3) 90 (32.8)

Abbreviations: HAART, highly active antiretroviral therapy; HIV, human immunodeficiency virus; IVDU, intravenous drug user; MSM, men who have sex with men; NAT, nucleic acid testing; PrEP, preexposure prophylaxis; VA, Veterans Affairs.

a Total number of responses unless indicated otherwise in Characteristics column.

b Column percentages sum to >100% because responses were not mutually exclusive (ie, participants were able to choose >1 response for each question). P values correspond to second-order Rao-Scott adjusted χ2 test.