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Table 3 Vaginal lubrication practices among HIV-negative female sex workers in Tijuana and Ciudad Juarez, Mexico (N = 295)

From: Vaginal washing and lubrication among female sex workers in the Mexico-US border region: implications for the development of vaginal PrEP for HIV prevention

  Tijuana Ciudad Juarez Total p-value
n % n % n %
Vaginal lubrication before or during VS
 Lifetime 116 80.0 90 60.0 206 69.8 0.0002
 Past month 92 63.5 67 44.7 159 53.9 0.001
Frequency of lubricant use before or during VS in the past montha        0.004
 Less than weekly 9 9.8 6 9.0 15 9.4  
 Once a week 6 6.5 6 9.0 12 7.6  
 Several times a week 26 28.3 33 49.3 59 37.1  
 Once a day 3 3.3 6 9.0 9 5.7  
 Several times a day 48 52.2 16 23.9 64 40.3  
Vaginal lubricant use with clients in the past montha 89 98.9 63 96.9 152 98.1 0.57
 Used vaginal lubricants before or during most or all (≥75%) VS acts with regular clients 54 62.8 16 25.4 70 47.0 <  0.0001
 Used vaginal lubricants before or during most or all (≥75%) VS acts with non-regular clients 52 63.4 13 20.0 65 44.2 <  0.0001
Who supplied lubricants used before or during VS in the past month?a        0.09
 Participant 71 77.2 41 61.2 112 70.4  
 Clients or other sex partners 11 12.0 15 22.4 26 16.4  
 Both the participant and her clients or other sex partner 10 10.9 11 16.4 21 13.2  
Who applied lubricants used before or during VS in the past month?a        0.06
 Participant 72 78.3 41 61.2 113 71.1  
 Clients or other sex partners 7 7.6 10 14.9 17 10.7  
 Both the participant and her clients or other sex partner 13 14.1 16 23.9 29 18.2  
Where was lubricant applied before or during VS in the past month?a
 Around my vagina 40 43.5 38 56.7 78 49.1 0.10
 Inside my vagina 25 27.2 12 17.9 37 23.3 0.17
 Directly on my client or sex partners penis 7 7.6 22 32.8 29 18.2 <  0.0001
 On the outside of the condom 64 69.6 28 41.8 92 57.9 0.001
 Inside the condom 11 12.0 6 9.0 17 10.7 0.61
 Applied lubricant at multiple locations 47 51.1 32 47.8 79 49.7 0.68
Lubricant use before or during VS interrupted sex in the past montha        <  0.0001
 Never 82 89.1 41 61.2 123 77.4  
 Rarely (1–24% of the time) 2 2.2 10 14.9 12 7.6  
 Sometimes (25–49% of the time) 3 3.3 15 22.4 18 11.3  
 Usually (50–74% of the time) 1 1.1 0 0.0 1 0.6  
 Most of the time (75–99% of the time) 3 3.3 1 1.5 4 2.5  
 Always (100% of the time) 1 1.1 0 0.0 1 0.6  
Type of lubricant used before or during VS in the past montha
 Water-based lubricants 62 68.1 39 58.2 101 63.9 0.20
 Silicone-based lubricants 11 12.1 7 10.5 18 11.4 0.81
 Oil-based lubricants 22 24.2 31 46.3 53 33.5 0.004
Lubricant used before or during VS in the past montha        0.05
 Commercial lubricants only 57 63.3 31 48.4 88 57.1  
 Non-commercial lubricants only 2 2.2 0 0.0 2 1.3  
 Both commercial and non-commercial lubricants 31 34.4 33 51.6 64 41.6  
  1. Abbreviations: VS vaginal sex
  2. aAmong participants who reported vaginal lubrication in the past month