Table 4.

Relative Risk and 95% Confidence Intervals for the Association Between Waist Circumference, Hip Circumference, Waist/Hip Ratio, and Waist/Height Ratio and B-Cell Non-Hodgkin Lymphoma Risk Among Women in the California Teachers Study, 1997–2007

Variable	Person-Years	All Cases			Diffuse Large B-Cell			Follicular			CLL/SLL
		Cases (n = 377)	Relative Risk	95% Confidence Interval	Cases (n = 99)	Relative Risk	95% Confidence Interval	Cases (n = 85)	Relative Risk	95% Confidence Interval	Cases (n = 81)	Relative Risk	95% Confidence Interval
Waist circumference, ma
<0.74	200,090	67	1.01	0.72, 1.41	17	0.78	0.41, 1.48	11	0.67	0.31, 1.42	17	1.14	0.58, 2.25
0.74–0.81	194,095	85	1.00	Referent	26	1.00	Referent	22	1.00	Referent	19	1.00	Referent
0.82–0.89	164,529	76	0.84	0.61, 1.15	20	0.78	0.43, 1.43	15	0.62	0.32, 1.23	18	0.89	0.46, 1.73
>0.89	177,277	111	1.03	0.74, 1.44	27	0.92	0.48, 1.74	30	1.02	0.53, 1.97	22	0.99	0.49, 2.02
Unknown	94,628	38			9			7			5
Ptrend			0.76			0.72			0.25			0.62
Hip circumference, ma
<0.95	205,668	88	1.14	0.81, 1.59	24	0.88	0.47, 1.65	18	1.62	0.75, 3.52	25	1.38	0.70, 2.71
0.95–1.00	169,586	70	1.00	Referent	22	1.00	Referent	12	1.00	Referent	16	1.00	Referent
1.01–1.07	189,641	91	1.03	0.75, 1.43	22	0.85	0.46, 1.59	22	1.34	0.65, 2.78	15	0.77	0.37, 1.60
>1.07	169,403	89	1.15	0.79, 1.66	20	0.85	0.41, 1.76	27	1.77	0.80, 3.91	20	1.40	0.65, 3.05
Unknown	96,321	39			11			6			5
Ptrend			0.98			0.85			0.64			0.98
Waist/hip ratioa
<0.76	198,768	61	0.92	0.65, 1.30	18	1.25	0.63, 2.48	13	0.66	0.33, 1.32	12	0.81	0.38, 1.73
0.76–0.79	172,577	70	1.00	Referent	15	1.00	Referent	21	1.00	Referent	16	1.00	Referent
0.80–0.85	182,829	92	1.00	0.73, 1.37	23	1.22	0.63, 2.34	15	0.57	0.29, 1.11	24	1.12	0.59, 2.11
>0.85	177,793	112	0.94	0.69, 1.29	32	1.35	0.71, 2.55	28	0.83	0.45, 1.51	23	0.82	0.42, 1.59
Unknown	98,652	42			11			8			6
Ptrend			0.97			0.56			0.55			0.77
Waist/height ratiob
<0.45	204,921	71	1.10	0.79, 1.53	18	0.78	0.42, 1.44	12	0.78	0.37, 1.65	20	1.66	0.84, 3.28
0.45–0.48	175,034	76	1.00	Referent	26	1.00	Referent	18	1.00	Referent	15	1.00	Referent
0.49–0.55	171,804	84	0.86	0.63, 1.18	18	0.56	0.30, 1.04	22	0.93	0.49, 1.77	18	0.94	0.47, 1.89
>0.55	182,083	106	0.85	0.61, 1.18	27	0.69	0.37, 1.28	25	0.78	0.39, 1.54	23	0.98	0.48, 2.02
Unknown	96,777	40			10			8			5
Ptrend			0.16			0.57			0.91			0.18

Abbreviations: CLL, chronic lymphocytic leukemia; SLL, small lymphocytic lymphoma.

^aAdjusted for height, weight at cohort entry, age at menarche (≤11, 12, ≥13 years, never had period, missing), and long-term strenuous plus moderate physical activity.

^bAdjusted for weight at cohort entry, age at menarche (≤11, 12, ≥13 years, never had period, missing), and long-term strenuous plus moderate physical activity.