Table 3.
Codes used for the databases from the UK, France, Belgium and the Netherlands to extract study variables
| Variables | Definitions | Codes used | |||
|---|---|---|---|---|---|
| United Kingdom | France | Belgiuma | Netherlands | ||
| Exposures defined by drugcodes in UK and ATC codes in France, Belgium and the Netherlands | |||||
| GnRH agonists | Prescription or dispensation of: Leuprorelin Acetate (Eligard), Leuprorelin Acetate (Lucrin), Leuprorelin Acetate (Generics) | Drugcodes: 39797978, 42604978, 61916979, 61917979, 61918979, 61919979, 88842998, 88845998, 92404979, 92405979, 92412979, 96945998, 97368998, 81332998, 81333998 | ATC: L02AE02 | ATC: L02AE02 | ATC: L02AE02 |
| Prescription or dispensation of: Goserelin (Zoladex) | Drugcodes: 82646998, 91057998, 91058998, 92434979, 92436979, 92439979, 92444979, 94894998, 94895998 | ATC: L02AE03 | ATC: L02AE03 | ATC: L02AE03 | |
| Prescription or dispensation of: Buserelin | Drugcodes: 94133997, 94133998, 97430997, 97430998 | ATC: L02AE02 | ATC: L02AE02 | ATC: L02AE02 | |
| Triptorelin (Decapeptyl or Gonapeptyl Depot) | Drugcodes: 81648998, 81649998, 81699998, 81700998, 87670998, 87671998, 87744998, 87745998, 91336998, 91337998 | ATC: L02AE04 | ATC: L02AE04 | ATC: L02AE04 | |
| GnRH antagonist | Prescription or dispensation of: Degarelix | Drugcodes: 82881998, 82882998, 82886998, 82887998 | ATC: L02BX02 | ATC: L02BX02 | ATC: L02BX02 |
| Outcomes defined by readcodes in UK and ICD codes in France, Belgium and the Netherlands | |||||
| Any CVD | First incident or fatal any CVD | G3…00, G3…11, G3…12, G3…13, G30..00, G30..12, G30..13, G30..15, G30..16, G30..17, G300.00, G301.00, G301000, G301100, G301z00, G302.00, G303.00, G304.00, G305.00, G306.00, G307.00, G307000, G307100, G308.00, G309.00, G30B.00, G30X.00, G30X000, G30y.00, G30y100, G30y200, G30yz00, G30z.00, G31..00, G310.00, G310.11, G311.00, G311.11, G311.12, G311.13, G311.14, G311000, G311011, G311100, G311200, G311300, G311500, G311z00, G31y.00, G31y000, G31y200, G31y300, G31yz00, G32..00, G32..11, G32..12, G33..00, G330.00, G330000, G330z00, G331.00, G331.11, G332.00, G33z.00, G33z000, G33z100, G33z200, G33z300, G33z400, G33z500, G33z600, G33z700, G33zz00, G34..00, G340.00, G340.11, G340.12, G340000, G340100, G342.00, G343.00, G344.00, G34y.00, G34y000, G34y100, G34yz00, G34z.00, G34z000, G35..00, G350.00, G351.00, G353.00, G35X.00, G360.00, G362.00, G363.00, G364.00, G365.00, G38..00, G380.00, G381.00, G384.00, G38z.00, G3y..00, G3z..00, G574011, G575.00, G575.11, G575.12, G575000, G575100, G575z00, G61..00, G61..11, G61..12, G610.00, G611.00, G612.00, G613.00, G614.00, G615.00, G616.00, G617.00, G618.00, G61X.00, G61X000, G61X100, G61z.00, G63..00, G63..11, G632.00, G63y000, G63y100, G64..12, G64..13, G640.00, G640000, G641.00, G641.11, G641000, G64z.00, G64z.11, G64z.12, G64z000, G64z111, G64z200, G64z300, G64z400, G66..00, G66..11, G66..12, G66..13, G661.00, G662.00, G663.00, G664.00, G665.00, G666.00, G667.00, G668.00, G671.00, G671000, G671z00, G676000, G6W..00, G6X..00, G70..00, G700.00, G73..00, G73..12, G73y.00, G73yz00, G73z.00, G73z000, G73z011, G73zz00, G742z00, G74y300, G76z000, Gyu3.00, Gyu3200, Gyu3300, Gyu3400, Gyu3600, Gyu6200, Gyu6300, Gyu6400, Gyu6F00, Gyu6G00, Gyu7400 | ICD 10: I20‐I99, G45 | ICD 10: I20‐I99; G45ICD 9 : 4111 ‐ 4131 ‐ 4130 ‐ 4139 – 41000 ‐ 41001 ‐ 41002 ‐ 41010 ‐ 41011 ‐ 41012 ‐ 41030 ‐ 41031 –41032 ‐ 41020 ‐ 41021 ‐ 41022 ‐ 41040 ‐ 41041 ‐ 41042 ‐ 41050 – 41051 ‐ 41052 ‐ 41060 ‐ 41061 ‐41062 ‐ 41080 ‐ 41081 ‐ 41082 – 41090 ‐ 41091 ‐ 41092 ‐ 41070 ‐ 41071 ‐ 41072 ‐ 42979 ‐ 41181 –4110 ‐ 41189 ‐ 41400 ‐ 41401 ‐ 4292 ‐ 412 ‐ 41410 ‐ 41419 – 41411 ‐ 41412 ‐ 4148 ‐ 41402 – 41403 ‐ 41404 ‐ 41405 ‐ 41406 – 41407 ‐ 4142 ‐ 4143 ‐ 4144 ‐4149 ‐ 42611 ‐ 42612 ‐ 42613 – 4260 ‐ 42610 ‐ 42650 ‐ 4262 – 4263 ‐ 4264 ‐ 42651 ‐ 42652 ‐ 42653 ‐ 42654 ‐ 4266 – 4267 ‐ 42681 ‐ 42682 ‐ 42689 –4269 ‐ 4275 ‐ 4270 ‐ 4271 ‐ 4272 – 42731 ‐ 42732 ‐ 42741 ‐ 42742 – 42761 ‐ 42769 ‐ 42760 ‐ 42781 –42789 ‐ 4279 ‐ 4281 ‐ 42820 – 42821 ‐ 42822 ‐ 42823 ‐ 42830 – 42831 ‐ 42832 ‐ 42833 ‐ 42840 –42841 ‐ 42842 ‐ 42843 ‐ 4280 – 4289 ‐ 9971 ‐ 40201 ‐ 40211 – 40291 ‐ 430 ‐ 431 ‐ 4321 ‐ 4320 –4329 ‐ 43321 ‐ 43311 ‐ 43391 – 43301 ‐ 43401 ‐ 43411 ‐ 43491 – 43331 ‐ 43381 ‐ 4350 ‐ 4351 –4353 ‐ 4358 ‐ 4377 ‐ 4352 – 4359 | ICD 10: I20‐I99, G45 |
| Ischaemic Heart Disease | First incident or fatal IHD | G3…00, G3…11, G3…12, G3…13, G30..00, G30..11, G30..12, G30..13, G30..14, G30..15, G30..16, G30..17, G300.00, G301.00, G301000, G301100, G301z00, G302.00, G303.00, G304.00, G305.00, G306.00, G307.00, G307000, G307100, G308.00, G309.00, G30A.00, G30B.00, G30X.00, G30X000, G30y.00, G30y000, G30y100, G30y200, G30yz00, G30z.00, G31..00, G310.00, G310.11, G311.00, G311.11, G311.12, G311.13, G311.14, G311000,, G311011, G311100, G311200, G311300, G311400, G311500, G311z00, G312.00, G31y.00, G31y000, G31y100, G31y200, G31y300, G31yz00, G32..00, G32..11, G32..12, G33..00, G330.00, G330000, G330z00, G331.00, G331.11, G332.00, G33z.00, G33z000, G33z100, G33z200, G33z300, G33z400,G33z500, G33z600, G33z700, G33zz00, G34..00, G340.00, G340.11, G340.12, G340000, G340100, G342.00, G343.00, G344.00, G34y.00, G34y000, G34y100, G34yz00, G34z.00, G34z000, G35..00, G350.00, G351.00, G353.00, G35X.00, G36..00, G360.00, G361.00, G362.00, G363.00, G364.00, G365.00, G366.00, G38..00, G380.00, G381.00, G384.00, G38z.00, G3y..00, G3z..00 | ICD 10: I20‐I25 | ICD 10: I20‐I25ICD 9 : 4111 ‐ 4131 ‐ 4130 – 4139 ‐ 41000 ‐ 41001 ‐ 41002 – 41010 ‐ 41011 ‐ 41012 ‐ 41030 –41031 ‐ 41032 ‐ 41020 ‐ 41021 – 41022 ‐ 41040 ‐ 41041 ‐ 41042 – 41050 ‐ 41051 ‐ 41052 ‐ 41060 –41061 ‐ 41062 ‐ 41080 ‐ 41081 – 41082 ‐ 41090 ‐ 41091 ‐ 41092 – 41070 ‐ 41071 ‐ 41072 ‐ 42979 –41181 ‐ 4110 ‐ 41189 ‐ 41400 – 41401 ‐ 4292 ‐ 412 ‐ 41410 – 41419 ‐ 41411 ‐ 41412 ‐ 4148 – 41402 ‐ 41403 ‐ 41404 ‐ 41405 – 41406 ‐ 41407 ‐ 4142 ‐ 4143 – 4144 ‐ 4149 | ICD 10: I20‐I25 |
| Acute Myocardial Infarction | First incident or fatal AMI | 323..00, 3233.00, 3234.00, 3235.00, 3236.00, 323Z.00, 889A.00, G30..00, G30..11, G30..12, G30..13, G30..14, G30..15, G30..16, G30..17, G300.00, G301.00, G301000, G301100, G301z00, G302.00, G303.00, G304.00, G305.00, G306.00, G307.00, G307000, G307100, G308.00, G309.00, G30A.00, G30B.00, G30X.00, G30X000, G30y.00, G30y000, G30y100, G30y200, G30yz00, G30z.00, G310.11, G31y100, G35..00, G350.00, G351.00, G353.00, G35X.00, G36..00, G360.00, G361.00, G362.00, G363.00, G364.00, G365.00, G366.00, G38..00, G380.00, G381.00, G384.00, G38z.00, G501.00, Gyu3400 | ICD 10: I21 | ICD 10: I21ICD 9 : 41000 ‐ 41001 ‐ 41002 – 41010 ‐ 41011 ‐ 41012 ‐ 41030 – 41031 ‐ 41032 ‐ 41020 ‐ 41021 –41022 ‐ 41040 ‐ 41041 ‐ 41042 – 41050 ‐ 41051 ‐ 41052 ‐ 41060 – 41061 ‐ 41062 ‐ 41080 ‐ 41081 ‐41082 ‐ 41090 ‐ 41091 ‐ 41092 – 41070 ‐ 41071 – 41072 | ICD 10: I21 |
| Arrhythmia | First incident or fatal arrhythmia | 14AN.00, 14AR.00, 212R.00, 327..00, 3272, 3273, 328..00, 3282, 328Z.00, 662S.00, 6A9..00, 7936A00, 8CMW200, 8HTy.00, 9Os..00, 9Os0.00, 9Os1.00, 9Os2.00, 9Os3.00, 9Os4.00, 9hF..00, 9hF1.00, G559.00, G55A.11, G56..00, G56..11, G567400, G56y.00, G56y000, G56zz00, G57..00, G57..11, G570.00, G570000, G570100, G570200, G570300, G570z00, G571.00, G571.11, G572.00, G572000, G572z00, G573.00, G573000, G573100, G573200, G573300, G573400, G573500, G573600, G573z00, G574.00, G574100, G574z00, G576300, G576400, G576500, G57y.00, G57y600, G57y900, G57yA00, G57yz00, G57z.00, Gyu5a00, I45.6, I47, I47.0, I47.1, I47.2, I47.9, I48, I49, I49.0, I49.1, I49.2, I49.3, I49.4, I49.5, R00.0 | ICD 10: I44‐ I49 | ICD 10: I44‐ I49ICD 9 : 42611 ‐ 42612 ‐ 42613 – 4260 ‐ 42610 ‐ 42650 ‐ 4262 – 4263 ‐ 4264 ‐ 42651 ‐ 42652 – 42653 ‐ 42654 ‐ 42650 ‐ 4266 – 4267 ‐ 42681 ‐ 42682 ‐ 42689 –4269 ‐ 4275 ‐ 4270 ‐ 4271 ‐ 4272 – 42731 ‐ 42732 ‐ 42741 ‐ 42742 – 42761 ‐ 42769 ‐ 42760 ‐ 42781 –42789 – 4279 | ICD 10: I44‐ I49 |
| Heart Failure | First incident or fatal HF | 1O1..00, 402 C, 4270, 4270C, 4270CC, 4270D, 4270DR, 4270LW, 4270R, 4271, 4271A, 4271H, 428 A, 7824A, 7824AC, 7824FC, 7824FH, G1yz100, G232.00, G234.00, G58..00, G58..11, G580.00, G580.11, G580.12, G580.13, G580.14, G580000, G580100, G580200, G580300, G581.00, G581.11, G581.12, G581.13, G581000, G582.00, G58z.00, G58z.12 | ICD 10: I50, I97.710, I97.790, I11.0 | ICD 10: I50, I97.710, I97.790, I11.0ICD 9 :4281 ‐ 42820 ‐ 42821 – 42822 ‐ 42823 ‐ 42830 ‐ 42831 – 42832 ‐ 42833 ‐ 42840 ‐ 42841 – 42842 ‐ 42843 ‐ 4280 ‐ 4289 – 9971 ‐ 40201 ‐ 40211 – 40291 | ICD 10: I50, I97.710, I97.790, I11.0 |
| Stroke | First incident or fatal stroke | 4350AT, 4359AT, 4360A, 4360B, 4369A, 4369AL, 4369AR, 4369B, 4369BN, G61..00, G61..11, G61..12, G610.00, G611.00, G612.00, G613.00, G614.00, G615.00, G616.00G618.00, G61X.00, G61X000, G61X100, G61z.00, G63y000, G63y100, G64..00, G64..11, G64..12, G64..13, G640.00, G640000, G641.00, G641.11, G641000, G64z.00, G64z.11, G64z.12, G64z000, G64z100, G64z111, G64z200, G64z300, G64z400, G65..00, G65..11, G65..12, G65..13, G650.00, G650.11, G651.00, G651000, G652.00, G653.00, G654.00, G656.00, G65y.00, G65z.00, G65z000, G65z100, G65zz00, G66..00, G66..11, G66..12, G66..13, G660.00, G661.00, G662.00, G663.00, G664.00, G665.00, G666.00, G667.00, G668.00, G6W..00, G6X..00, Gyu6200, Gyu6300, Gyu6400, Gyu6500, Gyu6600, Gyu6G00, L440.11, L440.12 | ICD 10: I60‐64, G45 | ICD 10: I60‐64, G45ICD 9 : 430 ‐ 431 ‐ 4321 ‐ 4320 – 4329 ‐ 43321 ‐ 43311 ‐ 43391 – 43301 ‐ 43401 ‐ 43411 ‐ 43491 –43331 ‐ 43381 ‐ 4350 ‐ 4351 – 4353 ‐ 4358 ‐ 4377 ‐ 4352 – 4359 | ICD 10: I60‐64, G45 |
| Other variables defined by readcodes or drugcodes in UK and ICD or ATC codes in France, Belgium and the Netherlands | |||||
| Hypertension | At baseline | Algorithm using readcodes, ATC codes, BNF codes and drugcodes | Panel 1 (Figure 2) | Panel 2 (Figure 2) + ATC codes :C09AA01 ‐ C09AA02 ‐ C09AA03 – C09AA04 ‐ C09AA05 ‐ C09AA06 – C09AA07 ‐ C09AA08 ‐ C09AA09 –C09AA10 ‐ C09AA11 ‐ C09AA12 – C09AA13 ‐ C09AA14 ‐ C09AA15 – C09AA16 ‐ C07AA01 ‐ C07AA02 –C07AA03 ‐ C07AA05 ‐ C07AA06 – C07AA07 ‐ C07AA12 ‐ C07AA14 ‐ C07AA15 ‐ C07AA16 ‐ C07AA17 –C07AA19 ‐ C07AA23 ‐ C07AA27 – C07AB01 ‐ C07AB02 ‐ C07AB03 – C07AB04 ‐ C07AB05 ‐ C07AB06 –C07AB07 ‐ C07AB08 ‐ C07AB09 – C07AB10 ‐ C07AB11 ‐ C07AB12 – C07AB13 ‐ C07AB14 ‐ C08CA01 –C08DB01 ‐ C08CA02 ‐ C08CA03 – C08CA04 ‐ C08CA05 ‐ C08CA55 – C08DA01 ‐ C08DA51 ‐ C03AA01 –C03AA02 ‐ C03AA03 ‐ C03AA04 – C03AA05 ‐ C03AA06 ‐ C03AA07 – C03AA08 ‐ C03AA09 ‐ C03AA13 –C03AB01 ‐ C03AB02 ‐ C03AB03 – C03AB04 ‐ C03AB05 ‐ C03AB06 – C03AB07 ‐ C03AB08 ‐ C03AB09 ‐C07BA02 ‐ C07BA05 ‐ C07BA06 – C07BA07 ‐ C07BA12 ‐ C07BA68 – C07BB02 ‐ C07BB03 ‐ C07BB04 –C07BB06 ‐ C07BB07 ‐ C07BB12 – C07BB52 ‐ C09CA09 ‐ C09CA06 – C09DB07 ‐ C09DA06 ‐ C09CA02 –C09DA02 ‐ C09CA04 ‐ C09DB05 – C09DA04 ‐ C09CA01 ‐ C09DB06 – C09DA01 ‐ C09CA08 ‐ C09DB02 –C09DA08 ‐ C09DX03 ‐ C09CA07 – C09DB04 ‐ C09DA07 ‐ C09CA03 – C09DX02 ‐ C09DB01 ‐ C09DA03 –C09DB08 ‐ C09DX04 ‐ C09DX01 – C02AA01 ‐ C02AA02 ‐ C02AA03 – C02AA04 ‐ C02AA05 ‐ C02AA06 –C02AA07 ‐ C02AA52 ‐ C02AA53 ‐ C02AA57 ‐ C02AB01 ‐ C02AB02 – C02AC01 ‐ C02AC02 ‐ C02AC04 –C02AC05 ‐ C02AC06 ‐ C02BA01 – C02BB01 ‐ C02CA01 ‐ C02CA02 – C02CA03 ‐ C02CA04 ‐ C02CA06 –C02CC01 ‐ C02CC02 ‐ C02CC03 – C02CC04 ‐ C02CC05 ‐ C02CC06 – C02CC07 ‐ C02DG01 ‐ C02DA01 –C02DB01 ‐ C02DB02 ‐ C02DB03 – C02DB04 ‐ C02DC01 ‐ C02DD01 – C02KA01 ‐ C02KB01 ‐ C02KC01 –C02KD01 ‐ C02KX01 ‐ C02KX02 – C02KX03 ‐ C02KX04 ‐ C02KX05 – C02LA01 ‐ C02LA02 ‐ C02LA03 –C02LA04 ‐ C02LA07 ‐ C02LA08 – C02LA09 ‐ C02LA50 ‐ C02LA51 ‐ C02LA52 ‐ C02LA71 ‐ C02LB01 –C02LC01 ‐ C02LC05 ‐ C02LC51 – C02LE01 ‐ C02LF01 ‐ C02LG01 – C02LG02 ‐ C02LG03 ‐ C02LG51 –C02LG73 ‐ C02LK01 ‐ C02LL01 – C02LX01 ‐ C02BC ‐ C02LN ‐ C02N | Panel 1 (Figure 2) |
| Dyslipidaemia | At baseline | Algorithm using readcodes, ATC codes, BNF codes and drugcodes | ICD 10: E78 | ATC codes : C10AA01 ‐ C10AA02 – C10AA03 ‐ C10AA04 ‐ C10AA05 – C10AA06 ‐ C10AA07 ‐ C10AA08 – C10AB01 ‐ C10AB02 ‐ C10AB03 – C10AB04 ‐ C10AB05 ‐ C10AB06 – C10AB07 ‐ C10AB08 ‐ C10AB09 – C10AB10 ‐ C10AB11 ‐ C10AC01 – C10AC02 ‐ C10AC03 ‐ C10AC04 – C10AD01 ‐ C10AD02 ‐ C10AD03 – C10AD04 ‐ C10AD05 ‐ C10AD06 – C10AD52 ‐ C10AX03 ‐ C10AX05 – C10AX06 ‐ C10AX07 ‐ C10AX08 – C10AX09 ‐ C10AX10 ‐ C10AX11 – C10AX12 ‐ C10AX13 ‐ C10AX14 | ICD 10: E78 |
| Diabetes | At baseline | Algorithm using readcodes, ATC codes, BNF codes and drugcodes | ICD 10: E10‐E14 | ATC codes : A10BA02 ‐ A10BD02 – A10BD03 ‐ A10BD05 ‐ A10BD07 – A10BD08 ‐ A10BD10 ‐ A10BD11 – A10BD13 ‐ A10BD14 ‐ A10BD15 –A10BD16 ‐ A10BD17 ‐ A10BD18 – A10BD20 ‐ A10BB01 ‐ A10BB02 – A10BB03 ‐ A10BB04 ‐ A10BB05 –A10BB06 ‐ A10BB07 ‐ A10BB08 – A10BB09 ‐ A10BB10 ‐ A10BB11 – A10BB12 ‐ A10BB31 ‐ A10AB | ICD 10: E10‐E14 |
| Prior PCa Treatment | Radical prostatectomy before GnRH initiation | Readcodes: 7B20000, 7B20200, 7B36.00, 7B36.11, 7B36000, 7B36100, 7B36111, 7B36200, 7B36300, 7B36400, 7B36411, 7B36500, 7B36600, 7B36700, 7B36y00, 7B36z00, 7B36z11, 7B37.00, 7B37000, 7B37200, 7B37y00, 7B37z00, 7B3E.00, 7B3Ez00 | ICD 10: M6180, M6182, M34.1, M61.2, M61.3, M61.4 | Nomenclature codes (from health insurance companies : http://ondpanon.riziv.fgov.be/nomen/fr/search) :261796 – 261800694610 ‐ 694621154851 ‐ 154862777114 ‐ 777125 | ICD 10: M6180, M6182, M34.1, M61.2, M61.3, M61.4 |
| Prior PCa Treatment | Radiotherapy | 5149, 5151., 59…00, 597..00, 5971.00, 597Z.00, 59Z..00, 5A…11, 5A1..00, 5A16.00, 5A16.11, 5A16.12, 5A17.00, 5A1Z.00, 5A2..00, 5A27.00, 5A28.00, 5A2Z.00, 5A3..00, 5A33.00, 5A3Z.00, 5A4..00, 5A59.00, 5A65.00, 5A8Z.00, 7M37100, XalpH | ICD 10: M70.6, M71.2, Z42.2, Z42.2 | Nomenclature codes (from health insurance companies : http://ondpanon.riziv.fgov.be/nomen/fr/search):444113 ‐ 444124444135 ‐ 444146444150 ‐ 444161444172 ‐ 444183444216 ‐ 444220444253 ‐ 444264444290 ‐ 444301444312 ‐ 444323 | ICD 10: M70.6, M71.2, Z42.2, Z42.2 |
| Smoking Status | Current smokers | Readcodes: 137%, 8CAL%, 8H%, 8IAj.00, 9NS0200, 9ko% | N/A | N/A | N/A |
| Smoking Status | Non‐smokers | Readcodes: 1371%, 9kn% | N/A | N/A | N/A |
| Smoking Status | Smokers | Readcodes: 1377, 1378, 1379, 137(A,B,F,K,N,O,S,Tj), 1371.00, 9 km% | N/A | N/A | N/A |
| Ethnicity | Caucasian | Readcodes: 9S1%, 9SA9%, 9SI%, 9i1%, 9i2% | N/A | N/A | N/A |
| Ethnicity | Black | Readcodes: 9S2%, 9S3%, 9S4%, 9iB%, 9iC%, 9iC%, 9iD% | N/A | N/A | N/A |
| Ethnicity | Asian | Readcodes: 9S6%,9S7%,9S8%,9SA8%,9SH%,9i8%,9i9%,9iA% | N/A | N/A | N/A |
| Ethnicity | Other | Readcodes: 9S5%, 9S9%,9SA2%,9SA4%,9SAA%, 9SB%,9SJ%,9i3%‐9i6%,9iA3%,9iA7%,9iE%,9iF% | N/A | N/A | N/A |
| BMI | underweight at ≤ 18.5 | Readcodes: 22K3.00, 22K6.00, EMISNQBO29 | N/A | N/A | N/A |
| BMI | normal at 18.6–24 | Readcodes: 22K1.00, 22K8.00, JHCBO5 | N/A | N/A | N/A |
| BMI | overweight at 25–30 | Readcodes: 22K2.00, 22K4.00 | N/A | N/A | N/A |
| BMI | obese at ≥ 30 | Readcodes: 22KC.00, 22KD.00, 22KE.00, 22K7.00, 22K5.00 | N/A | N/A | N/A |
| Socio‐economic Status | Lowest | 1 ‐ least deprived | N/A | N/A | N/A |
| Socio‐economic Status | Low | 2 | N/A | N/A | N/A |
| Socio‐economic Status | Middle | 3 | N/A | N/A | N/A |
| Socio‐economic Status | High | 4 | N/A | N/A | N/A |
| Socio‐economic Status | Highest | 5 ‐ most deprived | N/A | N/A | N/A |
| Socio‐economic Status | French ‘poor income’ | N/A | N/A | N/A | |
| Civil Status | Single | Single (01), widowed (03), divorced (04), separated(05) | N/A | N/A | N/A |
| Civil Status | Married | Engaged (07), co‐habiting (08), remarried (09), stable relationship (10), civil partnership (11) | N/A | N/A | N/A |
a
Further information on nomenclature in Belgium can be found on the RIZIV/INAMI 50.