Table 2

Anthropometrics, physical activity, and polyp risksa

Controls n (%)Cases with hyperplastic polyps (n = 219)Cases with adenomatous polyps (n = 437)Cases with both types of polyps (n = 138)
Cases n (%)Age-adjustedMultivariate-adjustedCases n (%)Age-adjustedMultivariate-adjustedCases n (%)Age-adjustedMultivariate-adjusted
OR95% CIORb95% CIbOR95% CIORb95% CIbOR95% CIORb95% CIb
MEN
 BMI (kg/m2)
  <24.267 (25)18 (15)1.01.043 (17)1.01.012 (13)1.01.0
  24.2–26.466 (25)23 (20)1.30.6–2.61.30.6–2.657 (22)1.30.8–2.21.20.7–2.124 (27)2.00.9–4.31.80.9–4.0
  26.5–29.667 (25)43 (37)2.41.3–4.62.21.2–4.387 (34)2.11.3–3.52.21.3–3.723 (26)2.10.9–4.61.90.8–4.3
  29.7+65 (25)33 (28)1.91.0–3.71.70.9–3.471 (28)1.81.1–3.01.61.0–2.830 (34)2.81.3–6.12.61.2–5.6
  P0.020.040.010.020.010.02
 WHR
  <0.9169 (26)15 (13)1.01.035 (13)1.01.09 (10)1.01.0
  0.91–0.9552 (19)28 (24)2.51.2–5.12.31.1–4.960 (23)2.01.2–3.61.91.1–3.416 (18)2.00.8–5.12.10.8–5.4
  0.96–1.083 (31)41 (34)2.31.1–4.41.90.9–3.984 (32)1.71.0–2.81.50.9–2.625 (28)1.80.8–4.21.70.7–4.2
  1.1+63 (24)35 (29)2.51.3–5.11.60.7–3.582 (31)2.11.3–3.61.70.9–3.240 (44)3.81.7–8.53.01.2–7.7
  P0.020.440.020.18<0.010.02
 Physical activity (MET-hours of physical activity)
  <12.368 (25)37 (30)1.01.070 (27)1.01.021 (23)1.01.0
  12.3–24.768 (25)32 (26)0.90.5–1.50.90.5–1.665 (25)0.90.5–1.40.90.5–1.424 (26)1.10.5–2.11.10.6–2.3
  24.8–46.967 (25)26 (21)0.70.4–1.30.70.4–1.450 (19)0.70.4–1.20.80.5–1.320 (22)1.00.5–2.01.00.5–2.2
  47.0+67 (25)27 (22)0.70.4–1.30.70.3–1.278 (30)1.00.6–1.71.00.6–1.627 (29)1.10.6–2.21.10.5–2.1
  P0.250.150.960.860.800.99
WOMEN
 BMI (kg/m2)
  <22.7103261.01.0441.01.071.01.0
  22.7–25.8107190.80.4–1.60.80.4–1.7410.60.4–1.10.70.4–1.2111.00.4–2.71.20.4–3.3
  25.9–29.8109241.00.5–1.70.90.5–1.7440.90.5–1.40.80.5–1.4171.50.7–3.41.80.8–4.1
  29.9+105271.20.7–2.11.10.6–2.0410.80.5–1.30.80.5–1.3111.00.4–2.51.10.5–2.8
  P0.560.720.460.430.680.55
 WHR
  <0.7696151.01.0401.01.041.01.0
  0.76–0.82119221.50.9–2.51.30.7–2.4361.00.6–1.50.90.5–1.471.80.8–4.21.40.6–3.5
  0.83–0.89110331.00.5–1.90.90.4–1.8540.80.5–1.30.70.4–1.3171.70.6–4.21.60.6–4.4
  0.90+103241.70.8–3.91.20.5–3.2400.50.2–1.10.40.2–1.1171.80.6–5.81.40.4–5.1
  P0.430.990.080.060.280.50
 Physical activity (MET-hours of physical activity)
  <11111231.01.0411.01.071.01.0
  11–23.4109180.80.4–1.61.00.5–2.1420.80.5–1.30.70.4–1.3111.40.5–3.61.30.5–3.8
  23.5–41.1109211.20.6–2.21.50.8–2.9491.10.7–1.71.00.6–1.6101.70.7–4.11.80.7–4.8
  41.2+109351.50.8–2.71.70.9–3.2410.90.5–1.40.70.4–1.2181.90.8–4.72.10.8–5.3
  P0.120.070.840.350.130.09
  • a Quartiles of BMI, WHR, and physical activity were determined based on the distribution among controls of each sex.

  • b Multivariate adjustment for age, BMI, HRT (yes/no), smoking (pack-years), and alcohol, where appropriate.