Table 2.

Characteristics of case-control studies.

Authors	Report distinction	Study name	Years of night shift work (range)	Years of night shift work (point dose)	Cases (total cases: 5593)	Controls (total controls: 6876)	Total participants (total: 12,469)	Odds ratio and 95% confidence interval
Barul et al. (2019) [29]	1	Prostate Cancer and Environment study	0	0	1642	1718	3360	1
			0–4	2	59	67	126	0.9 (0.63–1.27)
			4–11	7.5	67	63	130	1.04 (0.72–1.5)
			11–21	16	56	46	102	1.1 (0.74–1.64)
			>21	26	68	57	125	1.19 (0.83–1.72)
Conlon et al. (2007) [30]	2	25-page mailed questionnaire study in Ontario, Canada	0	0	391	909	1300	1
			0–7	3.5	115	185	300	1.44 (1.1–1.87)
			7–22	14.5	87	179	266	1.14 (0.86–1.52)
			22–34	28	81	205	286	0.93 (0.7–1.23)
			>34	40	86	154	240	1.3 (0.97–1.74)
Papantoniou et al. (2015) [31]	3	MCC-Spain study	0	0	733	948	1681	1
			0–10	5	128	145	273	1.1 (0.83–1.45)
			10–28	19	92	130	222	0.94 (0.69–1.27)
			>28	37	138	128	266	1.38 (1.05–1.81)
Parent et al. (2012) [32]	4	Montreal Multisite Case-Control Cancer study	0	0	268	438	706	1
			0–5	2.5	68	36	104	3.13 (1.98–4.95)
			5–10	7.5	27	19	46	2.11 (1.11–3.99)
			>10	12.5	36	19	55	2.68 (1.45–4.95)
Tse et al. (2017) [33]	5	Hong Kong prostate cancer case-control study	Night shift work: never	0	366	372	738	1
			Night shift work: ever	10	58	30	88	1.76 (1.07–2.89)
Lozano-Lorca et al. (2020) [34]	6	CAPLIFE study	0	0	344	368	712	1
			0–7	3.5	29	23	52	1.33 (0.75–2.38)
			7–26	16.5	40	22	62	1.93 (1.11–3.36)
			>26	35.5	28	21	49	1.18 (0.65–2.14)
Wendeu-Foyet et al. (2018): >10 h [35]	7	Epidemiology of Prostate Cancer (EPICAP) study	0	0	532	556	1088	1
			0–10	5	13	11	24	1.31 (0.57–3.01)
			10–20	15	11	8	19	1.47 (0.58–3.74)
			20–30	25	10	10	20	1.07 (0.43–2.66)
			>30	35	20	9	29	2.49 (1.11–5.61)