Table 3

Adjusted associations of grooming practices with self-reported histories of individual types of STIs in a nationally representative US probability sample, 2013

Any STI
N=943
Cutaneous STI
N=401
Secretory STI
N=538
Lice
N=196
Crude ORAdjusted OR†Crude ORAdjusted OR†Crude ORAdjusted OR†Crude ORAdjusted OR†
Non-groomers1.0 (reference‡)1.0 (reference‡)1.0 (reference‡)1.0 (reference‡)1.0 (reference‡)1.0 (reference‡)1.0 (reference‡)1.0 (reference‡)
Groomers1.9 (1.6–2.2)**1.8 (1.4–2.2)**2.9 (2.1–3.9)**2.6 (1.8–3.7)**1.7 (1.3–2.1)**1.7 (1.3–2.2)**1.7 (1.2–2.5)**1.9 (1.3–2.9)**
Non-extreme groomers1.8 (1.5–2.1)**1.7 (1.4–2.1)**2.6 (1.9–3.5)**2.3 (1.6–3.3)**1.6 (1.3–2.0)**1.6 (1.2–2.1)**1.8 (1.3–2.7)**2.0 (1.3–3.0)**
Extreme groomers2.4 (1.9–3.0)**2.5 (1.9–3.3)**4.4 (3.0–6.3)**4.4 (2.9–6.8)**2.0 (1.5–2.7)**2.2 (1.6–3.2)**1.2 (0.7–2.1)1.5 (0.8–3.0)
Low-frequency groomers1.9 (1.6–2.2)**1.7 (1.4–2.2)**2.7 (2.0–3.7)**2.4 (1.6–3.4)**1.7 (1.4–2.2)**1.7 (1.3–2.3)**1.9 (1.3–2.8)**2.0 (1.3–3.1)**
High-frequency groomers1.9 (1.5–2.4)**2.0 (1.5–2.6)**3.6 (2.5–5.1)**3.6 (2.3–5.4)**1.5 (1.1–2.0)*1.6 (1.1–2.2)*1.0 (0.6–1.7)1.4 (0.8–2.6)
  • Extreme grooming—removal of all pubic hair more than 11 times per year. High-frequency grooming—hair trimming daily or weekly. Cutaneous STI—herpes, HPV, syphilis, vaginal/anal warts and molluscum contagiosum. Secretory STI—gonorrhoea, chlamydia and/or HIV.

  • *p<0.05, **p<0.01.

  • †Adjusted for age and number of lifetime sexual partners.

  • ‡Reference category for all comparisons.

  • HPV, human papillomavirus.