Table 2 Sexual partner numbers in the lifetime, past 5 years, and past year reported by men who have sex exclusively with women (MSEW), all men who have sex with men (MSM), and MSM who identified as gay in Natsal-3

Lifetime

 Age standardised:

  % [95 % CI]

   0

0

0

0

97.5 [97.0–98.0]

0

0

0

30.1 [23–38.3]

55.4 [42.7–67.4]

   1

13.7 [12.6–14.9]

1.8 [0.7–4.5]

1.3 [0.3–5.3]

1.4 [1.1–1.9]

14.6 [9.3–22.2]

3.1 [0.8–10.7]

13.7 [12.6–14.9]

13.7 [9.0–20.3]

22.1 [13.6–33.8]

   2

8.4 [7.5–9.3]

1.8 [0.9–3.8]

1.5 [0.5–4.9]

0.5 [0.4–0.8]

9.3 [5.2–16.0]

4.4 [1.8–10.4]

8.4 [7.5–9.4]

8.5 [4.6–15.0]

8.8 [3.5–20.4]

   3–4

15.3 [14.1–16.5]

9.2 [5.2–15.9]

8 [3.8–16.3]

0.3 [0.1–0.5]

15.1 [9.8–22.3]

10 [5.1–18.8]

15.6 [14.4–16.8]

9.6 [5.7–15.9]

6.2 [2.3–15.3]

   5–9

25.7 [24.3–27.1]

19.1 [13.3–26.6]

18.1 [11.3–27.5]

0.2 [0.1–0.4]

18.5 [12.3–27]

12.9 [7.6–21.0]

25.4 [24–26.8]

11.3 [6.6–18.7]

4.8 [1.8–11.9]

   10+

37 [35.5–38.6]

68 [59.5–75.4]

71.1 [61.3–79.3]

0.1 [0–0.3]

42.5 [34.3–51.2]

69.6 [59.9–77.9]

37 [35.5–38.5]

26.9 [19.5–35.8]

2.8 [1.1–6.8]

  Mean

14.3

111.1

86.7

0.1

45.7

84.8

14.3

60.4

1.2

  aAOR^c

1.00

3.40 (2.42–4.78)

3.42 (2.25–5.22)

1.00

836 (516–1356)

2504 (1191–5267)

1.00

0.15 (0.07–0.32)

0.00 (0.00–0.01)

 Non-age standardised:

  Mean (sd)

14.3 (43.1)

90.1 (345.0)

76.4 (166.6)

0.1 (0.5)

44.7 (121.6)

74.2 (165.5)

14.3 (43.1)

44.6 (323.6)

1.3 (3.2)

  Median (IQR)

6 (3–15)

17 (6–50)

19 (6–70)

0 (0–0)

6 (2–25)

19 (5–70)

6 (3–5)

2 (0–9)

0 (0–1)

Past 5 years

 Age standardised:

  % [95 % CI]

   0

0

0

0

N/A

0

54.1 [45.7–62.3]

93.5 [89.6–96.1]

   1

62.7 [61.3–64.0]

15.6 [10.1–23.3]

26.7 [16.5–40.3]

32.2 [24.2–41.5]

26.3 [16.2–39.8]

62.7 [61.3–64]

16.1 [10.5–23.9]

3.3 [1.6–6.5]

   2

11.4 [10.5–12.4]

10.7 [6.4–17.5]

5.5 [2.5–11.9]

13.5 [8.5–20.8]

6.8 [3.4–13.0]

11.4 [10.5–12.4]

5.5 [2.5–11.3]

1.4 [0.4–4.7]

   3–4

11.3 [10.4–12.2]

15.3 [10–22.8]

19.4 [11–31.7]

15.7 [10.4–23.1]

19.1 [10.9–31.3]

11.3 [10.4–12.2]

9.7 [5.3–16.9]

1.4 [0.4–4.7]

   5–9

8.4 [7.7–9.2]

22.6 [16.4–30.3]

13.5 [7.1–24.3]

11.9 [7.5–18.3]

12.6 [6.4–23.3]

8.4 [7.7–9.2]

6.1 [3.1–11.7]

0.4 [0–2.5]

   10+

6.3 [5.7–6.9]

35.8 [27.8–44.8]

34.8 [23.7–47.9]

26.7 [19.7–35.2]

35.3 [24.2–48.1]

6.3 [5.7–6.9]

8.5 [4.7–15.2]

0

  Mean

3

15.8

17.3

12.2

17.5

3.0

3.7

0.1

  aAOR^c

1.00

9.36 (6.23–14.08)

6.22 (3.57–10.84)

1.00

0.01 (0.00–0.03)

0.00 (0.00–0.00)

 Non-age standardised:

  Mean (sd)

3.0 (5.3)

15.9 (35.2)

18.1 (43.5)

12.3 (31.7)

18.3 (43.7)

3.0 (5.3)

3.6 (16.6)

0.2 (0.7)

  Median (IQR)

1 (1–3)

6 (2–16)

5 (2–30)

3 (1–10)

5 (2–30)

1 (1–3)

0 (0–2)

0 (0–0)

Past year

N/A

 Age standardised:

  % [95 % CI]

   0

6.1 [5.4–6.9]

3.9 [1.9–8.1]

6 [2.2–15.5]

14.9 [9.6–22.2]

5.9 [2.2–15.3]

6.1 [5.4–6.9]

60.8 [51.8–69.1]

97.7 [94.1–99.2]

   1

77.1 [75.8–78.4]

36.0 [27.8–45.1]

45.8 [33.2–59.0]

42.6 [33.9–51.7]

45.3 [32.8–58.4]

77.1 [75.8–78.4]

21.6 [15.0–30.2]

0.8 [0.1–5.1]

   2

8.0 [7.2–8.8]

13 [8.0–20.4]

8.5 [3.9–17.6]

9.7 [5.8–15.7]

9.0 [4.3–17.9]

8.0 [7.2–8.8]

6.2 [3.2–11.8]

0.7 [0.2–2.9]

   3–4

5.4 [4.8–6.1]

16.1 [10.8–23.5]

12.8 [7–22.4]

13.1 [8.6–19.6]

13.9 [7.7–23.8]

5.4 [4.8–6.1]

7.1 [3.7–13.0]

0.7 [0.1–5.1]

   5–9

2.2 [1.9–2.7]

17.6 [11.7–25.5]

7.3 [2.8–17.4]

8.6 [4.7–15.3]

6.4 [2.2–16.9]

2.2 [1.9–2.7]

3.7 [1.5–9.0]

0

   10+

1.2 [0.9–1.5]

13.4 [8.0–21.7]

19.6 [10.4–34.0]

11.2 [6.4–18.8]

19.5 [10.4–33.7]

1.2 [0.9–1.5]

0.7 [0.1–4.5]

0

  Mean

1.4

4.5

5.0

3.5

4.9

1.4

0.9

0

  aAOR^c

1.00

8.29 (5.25–13.09)

4.84 (2.50–9.37)

1.00

0.04 (0.02–0.08)

0.00 (0.00–0.00)

 Non-age standardised:

  Mean (sd)

1.4 (2.0)

4.5 (8.5)

5.1 (11.7)

3.5 (8.4)

4.9 (11.7)

1.5 (2.0)

0.9 (1.8)

0.1 (0.4)

  Median (IQR)

1 (1–1)

2 (1–5)

1 (1–4)

1 (1–4)

1 (1–4)

1 (1–1)

0 (0–1)

0 (0–0)

N/A

 Age standardised:

  % [95 % CI]

   0

77.7 [76.6–78.8]

43.3 [34.8–52.2]

49.8 [37.1–62.5]

55.7 [47.0–64.1]

50.8 [38.1–63.4]

77.7 [76.6–78.8]

80.1 [72.4–86.1]

97.7 [94.1–99.2]

   1

13.2 [12.3–14.2]

14.8 [10.1–21.3]

15.6 [9.3–25.1]

13.1 [9.1–18.6]

15.6 [9.3–25.0]

13.2 [12.3–14.2]

9.6 [5.6–16.0]

1.9 [0.6–5.7]

   2

4.5 [4.0–5.1]

7.8 [4.1–14.2]

4.5 [1.7–11.6]

6.1 [3.3–11.0]

4.8 [1.9–11.8]

4.5 [4.0–5.1]

5.2 [2.7–9.9]

0.4 [0.0–2.5]

   3–4

2.7 [2.3–3.1]

12.3 [7.9–18.8]

9.5 [4.3–19.5]

9.7 [6.0–15.4]

9.3 [4.1–19.8]

2.7 [2.3–3.1]

2.7 [0.9–8.1]

0

   5–9

1.4 [1.1–1.7]

15.6 [9.5–24.5]

14.1 [6.1–29.2]

10.0 [5.0–18.8]

13.1 [5.4–28.4]

1.4 [1.1–1.7]

1.7 [0.5–6.0]

0

   10+

0.5 [0.4–0.7]

6.2 [3.2–11.5]

6.5 [2.9–13.9]

5.4 [2.7–10.5]

6.4 [2.9–13.6]

0.5 [0.4–0.7]

0.7 [0.1–4.5]

0

  Mean

0.5

3.2

3.6

2.6

3.5

0.5

0.5

0

  aAOR^c

1.00

6.24 (3.86–10.08)

4.32 (2.35–7.95)

1.00

0.76 (0.47–1.23)

0.08 (0.03–0.22)

 Non-age standardised:

  Mean (sd)

0.5 (1.4)

3.2 (8.5)

3.9 (11.8)

2.6 (8.3)

3.7 (11.8)

0.5 (1.4)

0.5 (1.6)

0.0 (0.2)

  Median (IQR)

0 (0–0)

1 (0–4)

1 (0–3)

1 (0–3)

0 (0–0)

0 (0–0)

0 (0–0)

N/A

 Age standardised:

  % [95 % CI]

   0

19.5 [18.3–20.9]

43.1 [34.4–52.3]

43.4 [32.3–55.3]

42.9 [32.6–54.0]

30.4 [20.0–43.3]

19.3 [18.1–20.6]

73.7 [65.5–80.5]

98.8 [95.0–99.7]

   1

72.4 [70.9–73.8]

32.2 [24.5–41.0]

40.1 [29.2–52.1]

37.1 [27.4–48.1]

49.7 [36.6–62.9]

72.7 [71.3–74.1]

14.7 [9.5–22.1]

1.2 [0.3–5.0]

   2+

8.0 [7.3–8.9]

24.7 [17.6–33.4]

16.4 [8.8–28.8]

19.9 [11.7–31.9]

19.8 [10.4–34.6]

7.9 [7.2–8.8]

11.6 [7.3–17.9]

0

  Mean

1.0

1.2

1.0

1.1

1.3

1.0

0.5

0.01

  aAOR^c

1.00

0.60 (0.30–1.18)

0.43 (0.21–0.88)

1.00

0.10 (0.06–0.16)

0.00 (0.00–0.01)

 Non-age standardised:

  Mean (sd)

1.0 (1.0)

1.2 (2.6)

1.2 (3.1)

1.2 (2.7)

1.5 (3.2)

1.0 (1.0)

0.5 (1.4)

0.01 (0.1)

  Median (IQR)

1 (1–1)

1 (0–1)

1 (0–1)

1 (0–1)

1 (0–1)

1 (1–1)

0 (0–1)

0 (0–0)