The cohort description with demographic, structural vulnerability, substance use, mental health, and sex work histories are reported in Table 1, stratified by reporting inconsistent condom use. Over two-thirds of the sample (65%) was between 18–39 years old and 57% was white (Table 1). A majority (67%) reported experiencing recent homelessness, 59% reported experiencing hunger at least weekly, and about half reporting clinically-significant PTSD (49%) and depressive (46%) symptoms. Most women (59%) sold sex for longer than 10 years, and over half (52%) sold sex daily. Gonorrhea or chlamydia prevalence at baseline was 15% and 21%, respectively, and HIV prevalence was 6%.
Table 1
Sample characteristics stratified by inconsistent condom use with clients among n = 361 female sex workers (FSW) in Baltimore, Maryland
| No Inconsistent Condom Use (n = 201) | Inconsistent Condom Use (n = 160) | Total (n = 361) | P |
Demographics | | | | |
Age | | | | 0.37 |
18–29 | 45 (22.4) | 39 (24.4) | 84 (23.3) | |
30–39 | 86 (42.8) | 57 (35.6) | 143 (39.6) | |
40–49 | 52 (25.9) | 42 (26.3) | 94 (26.0) | |
50+ | 18 (9.0) | 22 (13.8) | 40 (11.1) | |
Education: 3 level | | | | 0.92 |
<HS grad | 92 (45.8) | 73 (45.6) | 165 (45.7) | |
HS grad/GED | 52 (25.9) | 39 (24.4) | 91 (25.2) | |
Some col + | 57 (28.4) | 48 (30.0) | 105 (29.1) | |
Race | | | | 0.45 |
White | 116 (57.7) | 86 (53.8) | 202 (56.0) | |
Non-white | 85 (42.3) | 74 (46.3) | 159 (44.0) | |
Arrested, past 6 months* | 43 (21.7) | 50 (31.4) | 93 (26.1) | 0.04 |
Economic Context | | | | |
Homeless, past 6 months | 134 (66.7) | 105 (65.6) | 239 (66.2) | 0.32 |
Experienced hunger… | | | | 0.32 |
Less than weekly | 82 (40.8) | 57 (35.6) | 139 (38.5) | |
At least weekly | 119 (59.2) | 103 (64.4) | 222 (61.5) | |
Depend on someone financially | 146 (72.6) | 127 (79.4) | 273 (75.6) | 0.15 |
Others depend on you financially | 95 (47.3) | 79 (49.4) | 174 (48.2) | 0.69 |
Sex work only source of income | 53 (26.4) | 41 (25.6) | 94 (26.0) | 0.87 |
Mental Health | | | | |
Clinically-significant PTSD symptoms* | 96 (49.0) | 93 (58.5) | 189 (53.2) | 0.07 |
Clinically-significant depressive symptoms* | 92 (46.2) | 74 (46.8) | 166 (46.5) | 0.91 |
Substance Use | | | | |
Used crack/cocaine, past 6 months | 178 (88.6) | 138 (86.3) | 316 (87.5) | 0.51 |
Used heroin, past 6 months | 166 (82.6) | 123 (76.9) | 289 (80.1) | 0.18 |
Injected drugs, past 6 months | 119 (59.2) | 92 (57.5) | 211 (58.4) | 0.74 |
Sex Work History & Characteristics | | | | |
Time in sex work | | | | 0.99 |
≤ 10 years | 83 (41.3) | 66 (41.3) | 149 (41.3) | |
> 10 years | 118 (58.7) | 94 (58.8) | 212 (58.7) | |
Age started sex work* | | | | 0.41 |
< 18 | 38 (19.0) | 36 (22.8) | 74 (20.7) | |
18–30 years | 119 (59.5) | 83 (52.5) | 202 (56.4) | |
30 + years | 43 (21.5) | 39 (24.7) | 82 (22.9) | |
Sold sex daily | 104 (51.7) | 86 (53.8) | 190 (52.6) | 0.7 |
Found new clients on the street* | 157 (78.1) | 141 (88.7) | 298 (82.8) | 0.01 |
Client per week | | | | |
1 to 5 | 101 (50.3) | 54 (33.8) | 155 (42.9) | 0.002 |
6+ | 100 (49.8) | 106 (66.3) | 206 (57.1) | |
Someone takes a cut of your earnings | 26 (12.9) | 25 (15.6) | 51 (14.1) | 0.47 |
Gonorrhea positive | 30 (15.4) | 23 (14.8) | 53 (15.1) | 0.89 |
Chlamydia positive | 41 (20.8) | 23 (14.9) | 64 (18.2) | 0.16 |
Violence | | | | |
Forced or pressured sex from clients, past 6 months* | 62 (30.8) | 74 (46.5) | 136 (37.8) | 0.002 |
Client physical violence, past 6 months | 54 (26.9) | 66 (41.3) | 120 (33.2) | 0.002 |
Client sexual violence, past 6 months* | 40 (19.9) | 53 (33.3) | 93 (25.8) | 0.004 |
Response to Police Practices | | | | |
Rushed negotiations, past 6 months | 85 (42.7) | 77 (48.4) | 162 (45.3) | 0.28 |
Avoided carrying condoms, past 6 months | 20 (10.0) | 35 (21.9) | 55 (15.3) | 0.002 |
Moved to an unfamiliar area to work, past 6 months | 29 (14.7) | 35 (21.9) | 64 (17.9) | 0.08 |
*<3% data missing |
Prevalence of ICU with clients was 44%. Women who used condoms inconsistently were significantly more likely to have recently been arrested, found new clients on the street, have six or more clients per week, and reported having experienced recent forced or pressured sex, physical violence, and sexual violence from clients. They were also more significantly likely to avoid carrying condoms due to police in the area.
Table 2 displays frequencies of business employee or community member interactions stratified by inconsistent condom use. Twenty-eight percent of women said they were asked to leave the area in which they sold sex on a daily or weekly basis, 18% were verbally or physically threatened by employees daily or weekly, and 31% rushed negotiations with clients because of business employees in the area daily or weekly. Seventeen percent of women said they were reported to the police for using drugs on a daily or weekly basis, 27% reported being asked to leave the area in which they sold sex daily or weekly, and 36% rushed negotiations with clients because of community members in the area on a daily or weekly basis. Women reporting ICU were more likely to be reported to the police by business employees daily or weekly for using drugs (p = 0.02) or for selling sex (p = 0.03) compared to women who reported consistent condom use. Women reporting ICU were more likely to be reported to the police by community members daily or weekly for selling sex (p = 0.04) and to be verbally or physically threatened by community members daily or weekly (p = 0.03) compared to women who reported consistent condom use.
Table 2
Frequencies of business employee or community member interactions stratified by inconsistent condom use among n = 361 female sex workers (FSW) in Baltimore, Maryland
| No Inconsistent Condom Use (n = 201) | Inconsistent Condom Use (n = 160) | Total (n = 361) | P | | No Inconsistent Condom Use (n = 201) | Inconsistent Condom Use (n = 160) | Total (n = 361) | P |
| Business Employees | Community Members |
Frequency of ________ reporting you to the police for using drugs |
Never | 156 (80.0) | 106 (67.5) | 262 (74.4) | 0.02* | | 139 (70.2) | 96 (60.8) | 235 (66.0) | 0.17* |
Monthly | 16 (8.2) | 24 (15.3) | 40 (11.4) | | | 30 (15.2) | 31 (19.6) | 61 (17.1) | |
Weekly/Daily | 23 (11.8) | 27 (17.2) | 50 (14.2) | | | 29 (14.5) | 31 (19.6) | 60 (16.9) | |
Frequency of ___________ asking you to leave the area that you are selling sex |
Never | 105 (53.3) | 71 (44.7) | 176 (49.4) | 0.22* | | 103 (51.2) | 65 (40.6) | 168 (46.5) | 0.13 |
Monthly | 43 (21.8) | 37 (23.3) | 80 (22.5) | | | 48 (23.9) | 46 (28.8) | 94 (26.0) | |
Weekly/Daily | 49 (24.9) | 51 (32.1) | 100 (28.1) | | | 50 (24.9) | 49 (30.6) | 99 (27.4) | |
Frequency of _____________ reporting you to the police for selling sex |
Never | 139 (69.5) | 90 (56.3) | 229 (63.6) | 0.03* | | 125 (62.2) | 80 (50.0) | 205 (56.8) | 0.04 |
Monthly | 34 (17.0) | 30 (18.8) | 64 (17.8) | | | 42 (20.9) | 37 (23.1) | 79 (21.9) | |
Weekly/Daily | 27 (13.5) | 40 (25.0) | 67 (18.6) | | | 34 (16.9) | 43 (26.9) | 77 (21.3) | |
Frequency of ___________ verbally or physically threatening you |
Never | 140 (69.7) | 103 (64.4) | 243 (67.3) | 0.36 | | 132 (65.7) | 87 (54.4) | 218 (60.7) | 0.03 |
Monthly | 30 (14.9) | 23 (14.4) | 53 (14.7) | | | 23 (11.4) | 33 (20.6) | 56 (15.5) | |
Weekly/Daily | 31 (15.4) | 34 (21.3) | 65 (18.1) | | | 46 (23.9) | 40 (25.0) | 86 (23.8) | |
Rushed negotiations with clients because of _______ in the area |
Ever | 56 (27.9) | 57 (35.6) | 113 (31.3) | 0.19 | | 64 (31.8) | 66 (41.3) | 130 (36.0) | 0.17 |
* <3% of data missing |
Multivariable Model with Business Employees (Model A)
Model A examined the relationship between interactions with business employees and ICU, controlling for key psychosocial and sex work characteristics (Table 3). Compared to women who never experience business employees reporting them to police for selling sex, being reported to the police weekly or daily was associated with greater odds of ICU (aRR = 1.36, 95% CI = 1.05, 1.76). In the presence of other variables, there were significant elevated odds of ICU in association with: finding new clients on the street (adjusted risk ratio [aRR] = 1.58, 95% confidence interval [CI] = 1.06, 2.35), experiencing forced or pressured sex from clients (aRR = 1.30, 95% CI = 1.04, 1.63), having six or more clients per week (compared to 1–5, aRR = 1.37, 95% CI = 1.07, 1.77), and avoided carrying condoms because of police (aRR = 1.33, 95% CI = 1.02, 1.72).
Table 3
Bivariate and multivariable Poisson models with robust variance modeling inconsistent condom use among n = 361 female sex workers (FSW) in Baltimore, Maryland
| Unadjusted Models | Model A | Model B | Model C |
| RR (95% CI) | p | aRR | p | aRR (95% CI) | p | aRR (95% CI) | p |
Business Employee Variables | | | | | | | | |
Frequency of reporting you to the police for using drugs (ref = never) | | | | | | | |
Monthly | 1.48 (1.11, 1.99) | 0.01 | ---- | ---- | ---- | ---- |
Weekly/Daily | 1.35 (0.99, 1.79) | 0.06 | ---- | ---- | ---- | ---- |
Frequency of reporting you to the police for selling sex (ref = never) | | | | | | |
Monthly | 1.19 (0.88, 1.62) | 0.26 | 1.06 (0.78, 1.43) | 0.71 | 1.04 (0.75, 1.42) | 0.83 |
Weekly/Daily | 1.52 (1.18, 1.96) | 0.001 | 1.36 (1.05, 1.76) | 0.02 | 1.33 (0.99, 1.79) | 0.06 |
Ever rushed negotiations with clients because of business owners (ref = never) | 1.22 (0.97, 1.55) | 0.09 | ---- | ---- | ---- | ---- |
Community Member Variables | | | | | | | | |
Frequency of reporting you to the police for selling sex (ref = never) | | | | ---- | ---- | ---- | ---- |
Monthly | 1.20 (0.90, 1.61) | 0.22 | 1.01 (0.75, 1.36) | 0.96 | 0.99 (0.72, 1.35) | 0.93 |
Weekly/Daily | 1.45 (1.12, 1.88) | 0.01 | 1.42 (1.08, 1.86) | 0.01 | 1.26 (0.93, 1.70) | 0.14 |
Frequency of verbally or physically threatening you (ref = never) | | | | | | |
Monthly | 1.48 (1.13, 1.95) | 0.01 | 1.43 (1.08, 1.91) | 0.01 | 1.44 (1.08, 1.90) | 0.01 |
Weekly/Daily | 1.17 (0.89, 1.55) | 0.27 | 0.88 (0.66, 1.18) | 0.40 | 0.84 (0.62, 1.14) | 0.27 |
Ever rushed negotiations with clients because of community members (ref = never) | 1.25 (0.99, 1.58) | 0.06 | ---- | ---- | ---- | ---- |
Contextual Characteristics | | | | | | | | |
Arrested, past 6 months (ref = no) | | 0.03 | | ---- | | ---- | | ---- |
Yes | 1.30 (1.03, 1.65) | | ---- | | ---- | | ---- | |
PTSD symptoms (ref = no) | | 0.07 | | ---- | | ---- | | ---- |
Yes | 1.24 (0.98, 1.57) | | ---- | | ---- | | ---- | |
Found new clients on the street (ref = no) | | 0.02 | | 0.03 | | 0.05 | | 0.02 |
Yes | 1.63 (1.08, 2.45) | | 1.58 (1.06, 2.35) | | 1.58 (1.07, 2.34) | | 1.58 (1.07, 2.34) | |
Client forced or pressured sex (ref = no) | | 0.002 | | 0.02 | | 0.05 | | 0.05 |
Yes | 1.44 (1.14, 1.80) | | 1.30 (1.04, 1.63) | | 1.25 (1.00, 1.58) | | 1.26 (1.00, 1.58) | |
Client per week (ref = 1–5) | | | | 0.01 | | 0.01 | | 0.01 |
6+ | | | 1.37 (1.07, 1.77) | | 1.39 (1.08, 1.78) | | 1.38 (1.08, 1.77) | |
Avoided carrying condoms because of police (ref = no) | < 0.001 | | 0.03 | | 0.01 | | 0.01 |
Yes | 1.55 (1.22, 1.98) | | 1.33 (1.02, 1.72) | | 1.41 (1.10, 1.81) | | 1.37 (1.06, 1.76) | |
Moved to unfamiliar area because of police (ref = no) | | 0.06 | | ---- | | ---- | | ---- |
Yes | 1.29 (0.99, 1.67) | | ---- | | ---- | | ---- | |
Multivariable Model with Community Members (Model B)
Model B examined the relationship between interactions with community members and ICU, controlling for key psychosocial and sex work characteristics. Compared to women who never experienced verbal or physical threats from community members, experiencing threats monthly was associated with greater odds of ICU (aRR = 1.43, 95% CI = 1.08, 1.91), though experiencing threats weekly or daily was not significantly associated with ICU. Compared to women who never experience community members reporting them to police for selling sex, being reported to the police weekly or daily was associated with greater odds of ICU (aRR = 1.42, 95% CI = 1.05, 1.76). Additionally, there were significant elevated odds of ICU in association with: finding new clients on the street (aRR = 1.58, 95% CI = 1.07, 2.34), experiencing forced or pressured sex from clients (aRR = 1.25, 95% CI = 1.00, 1.58), having six or more clients per week (compared to 1–5, aRR = 1.39, 95% CI = 1.08, 1.78), and avoided carrying condoms because of police (aRR = 1.41, 95% CI = 1.10, 1.81).
Multivariable Model with Business Employees and Community Members (Model C)
Model C examined the relationship between interactions with business employees and community members, controlling for key psychosocial and sex work characteristics, which were similarly significant in this model as models A and B. Further, when including both business employee and community member interaction in the model, ICU was only associated with experiencing verbal or physical threats from community members on a monthly basis compared to never experiencing threats (aRR = 1.44, 95% CI = 1.08, 1.90).