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. Author manuscript; available in PMC: 2008 Jul 1.
Published in final edited form as: Am J Obstet Gynecol. 2007 Nov 5;198(1):37.e1–37.e8. doi: 10.1016/j.ajog.2007.05.033

Table 2.

Association between quintiles of lycopene* intake and incidence of uterine leiomyoma, Nurses’ Health Study II 1991–2001

Lycopene intake (quintiles)*
Q1 Q2 Q3 Q4 Q5 ptrend
Baseline
 Person years 137450 140286 138657 137712 138098
 Cases 1276 1215 1277 1307 1227
 Age adjusted HR, 95% CI 1.00 0.92 (0.85, 1.00) 0.96 (0.89, 1.04) 0.99 (0.91, 1.07) 0.92 (0.85, 1.00) 0.19
 Multivariate adjusted HR**, 95% CI 1.00 0.95 (0.88, 1.03) 0.98 (0.91, 1.06) 1.00 (0.93, 1.09) 0.93 (0.86, 1.00) 0.18
Cumulative average updated
 Person years 162138 187270 152527 118744 71524
 Cases 1432 1681 1481 1042 666
 Age adjusted HR, 95% CI 1.00 0.99 (0.92, 1.06) 1.04 (0.97, 1.12) 0.94 (0.87, 1.02) 1.00 (0.91, 1.10) 0.61
 Multivariate adjusted HR**, 95% CI 1.00 1.00 (0.93, 1.08) 1.05 (0.97, 1.13) 0.95 (0.88, 1.03) 0.99 (0.90, 1.08) 0.43
*

The median values of lycopene intake for quintiles 1–5 in 1991 are 3283, 4742, 6064, 8143, and 12511 micrograms/day

**

Adjusted for age, age at menarche (<10, 11, 12, 13, 14–15, >16), infertility (yes, no), marital status (ever, never), ancestry (white, black, Asian, Hispanic, other), age at first oral contraceptive use (<13, 13–16,17–20,21–24, ≥25), parity (0, 1, 2, 3, >4), age at first birth (<24, 25–30, >30), time since last birth (<1, 1–3, 4–5, 6–7, 8–9, 10–12, 13–15, >16), current BMI (<20, 20–21.9, 22–23.9, 24–24.9, 25–26.9, 27–29.9, >30), diastolic blood pressure (<65, 65–74, 75–84, 85–89, >90), antihypertensive therapy (no, yes), calories (continuous)