Table 3.

OR and 95% CI for mtDNA copy number and B-NHL overall and subtype of CLL according to follow-up time

	Logistic regression
	Q1 (6.7-23.6)	Q2 (23.7-29.4)	Q3 (29.5-36.2)	Q4 (36.3-294.7)	P trend
B-NHL*
≤4.6 y follow-up
n (case/control)	48/50	43/56	38/47	77/53
Adjusted OR (95% CI)	Ref.	0.81 (0.40-1.62)	0.87 (0.42-1.80)	1.34 (0.71-2.55)	.18
>4.6 y follow-up
n	64/57	34/49	47/57	67/49
Adjusted OR (95% CI)	Ref.	0.52 (0.28-0.96)	0.75 (0.41-1.36)	1.16 (0.62-2.16)	.53
B-NHL without MM*
≤4.6 y follow-up
n	32/38	28/37	26/33	58/36
Adjusted OR (95% CI)	Ref.	1.00 (0.44-2.27)	1.25 (0.50-3.11)	2.09 (0.97-4.51)	.02
>4.6 y follow-up
n	50/46	27/35	35/48	53/36
Adjusted OR (95% CI)	Ref.	0.63 (0.31-1.27)	0.60 (0.30-1.18)	1.31 (0.65-2.62)	.59
CLL†
≤4.6 y follow-up
n	6/117	8/117	8/118	26/117
Adjusted OR (95% CI)	Ref.	1.24 (0.41-3.68)	1.46 (0.49-4.35)	3.70 (1.44-9.52)	.001
>4.6 y follow-up
n	8/117	12/117	13/118	21/117
Adjusted OR (95% CI)	Ref.	1.40 (0.56-3.52)	1.43 (0.58-3.54)	2.39 (0.99-5.78)	.05

Quartiles (Q) number (minimum-maximum); P trend is the P value (2 sided) calculated by including the quartile number as a continuous variable.

Ref., reference.

^*Conditional logistic regression model adjusted for smoking status and educational level.

^†Unconditional logistic regression model adjusted for age at recruitment, sex, country, smoking status, educational level, and plate number.