Table 1

 Participants, incident cancer cases, and duration of follow-up in study of exposure work strain and risk of cancer

Study* (country)Median† follow-up (years)No of participants‡No (%) cancer freeNo (%) of incident cancer cases
Any cancerColorectal cancerLung cancerBreast cancerProstate cancer
COPSOQ-I (Denmark)3012 (2-12)16991609 (94.7)90 (5.3)10 (0.6)6 (0.4)18 (1.1)3 (0.2)
DWECS (Denmark)31 3210 (2-10)53135129 (96.5)184 (3.5)20 (0.4)16 (0.3)39 (0.7)21 (0.4)
FPS (Finland)335 (3-5)42 40141 562 (98.0)839 (2.0)41 (0.1)26 (0.1)300 (0.7)38 (0.1)
GAZEL (France)34 3511 (3-12)10 7009888 (92.4)812 (7.6)66 (0.6)55 (0.5)86 (0.8)252 (2.4)
HeSSup (Finland)368 (4-8)14 68914 304 (97.4)385 (2.6)25 (0.2)10 (0.1)108 (0.7)34 (0.2)
IPAW (Denmark)37 3813 (2-14)18801769 (94.1)111 (5.9)8 (0.4)10 (0.5)32 (1.7)7 (0.4)
POLS (Netherlands)3911 (3-13)88448574 (96.9)270 (3.1)44 (0.5)22 (0.2)2 (0.0)29 (0.3)
PUMA (Denmark)4011 (3-11)16911609 (95.2)82 (4.8)10 (0.6)8 (0.5)26 (1.5)6 (0.4)
Still Working (Finland)41 4223 (3-23)89988169 (90.8)829 (9.2)70 (0.8)107 (1.2)105 (1.2)85 (0.9)
Whitehall (UK)4323 (4-24)10 0748618 (85.5)1 456 (14.4)145 (1.4)71 (0.7)216 (2.2)245 (2.4)
WOLF Norrland (Sweden)4512 (4-13)44684220 (94.4)248 (5.6)32 (0.7)18 (0.4)16 (0.4)66 (1.5)
WOLF Stockholm (Sweden)4415 (2-16)52994840 (91.3)459 (8.7)51 (1.0)25 (0.5)62 (1.2)79 (1.5)
All12 (2-24)116 056110 291 (95.0)5765 (5.0)522 (0.5)374 (0.3)1010 (0.9)865 (0.7)

*See appendix 1 for study acronyms and details.

†1st-99th centile.

‡Participants with complete data on job strain, age, sex, socioeconomic position, BMI (not available in Still Working or COPSOQ-I), smoking, alcohol intake (not available in COPSOQ-I and an approximation in Still Working), and incident cancer events.