Table 1.
MLTCs and sociodemographic characteristics of UK Biobank, SAIL and UKHLS participants.
| UK Biobank | Total | MLTCs (row %) | Median # of hospitalisationsd | IQR (hosp.) | Median # GP visitsd | IQR (GP visits) | Mortality rate in % | 95% CI (mortality) | 
|---|---|---|---|---|---|---|---|---|
| Age | ||||||||
| 37–54 years | 194,200 | 42,149 (21.7%) | 2 | 1–4 | 37 | 21–63 | 2.08 | 2.02–2.15 | 
| 55–73 years | 308,303 | 123,008 (39.9%) | 3 | 2–6 | 59 | 36–90 | 7.56 | 7.46–7.65 | 
| Sex | ||||||||
| Female | 273,383 | 91,597 (33.5%) | 3 | 1–5 | 52 | 31–82 | 4.06 | 3.99–4.13 | 
| Male | 229,120 | 73,560 (32.1%) | 3 | 1–6 | 48 | 25–79 | 7.09 | 6.99–7.20 | 
| Townsend scorea | ||||||||
| 1st quintile (least deprived) | 100,658 | 29,938 (29.7%) | 3 | 1–5 | 48 | 28–76 | 4.63 | 4.50–4.76 | 
| 2nd quintile | 100,097 | 31,093 (31.1%) | 3 | 1–5 | 48 | 28–77 | 4.77 | 4.64–4.90 | 
| 3rd quintile | 100,383 | 31,950 (31.8%) | 3 | 1–5 | 50 | 29–80 | 5.09 | 4.95–5.23 | 
| 4th quintile | 100,367 | 33,414 (33.3%) | 3 | 1–6 | 50 | 28–81 | 5.43 | 5.29–5.57 | 
| 5th quintile (most deprived) | 100,998 | 38,762 (38.4%) | 3 | 2–6 | 55 | 30–91 | 7.31 | 7.13–7.45 | 
| SAIL | Total | MLTCs (row %) | Median # of hospitalisationsd | IQR (hosp.) | Median # GP visitsd | IQR (GP visits) | Mortality rate in % | 95% CI (mortality) | 
|---|---|---|---|---|---|---|---|---|
| Age | ||||||||
| 18–36 years | 557,006 | 53,818 (9.7%) | 2 | 1–4 | 59 | 23–123 | 0.67 | 0.65–0.69 | 
| 37–54 years | 579,940 | 139,943 (24.1%) | 2 | 1–4 | 112 | 42–205 | 3.02 | 2.97–3.06 | 
| 55–73 years | 490,639 | 246,893 (50.3%) | 3 | 2–6 | 213 | 125–298 | 14.87 | 14.77–14.97 | 
| 74+ years | 197,704 | 152,905 (32.5%) | 4 | 2–7 | 226 | 132–326 | 59.32 | 59.10–59.54 | 
| Sex | ||||||||
| Female | 920,865 | 339,419 (36.9%) | 3 | 1–5 | 152 | 70–252 | 11.67 | 11.60–11.73 | 
| Male | 904,381 | 254,128 (28.1%) | 2 | 1–5 | 99 | 30–214 | 11.51 | 11.44–11.57 | 
| Undefined | 43 | 12 (27.9%) | 1 | 1–5 | 76 | 48–252 | 2.32 | 0.33–14.75 | 
| WIMD scoreb | ||||||||
| 1st quintile (most deprived) | 331,559 | 122,662 (37.0%) | 3 | 1–6 | 143 | 55–249 | 12.96 | 12.84–13.07 | 
| 2nd quintile | 322,076 | 112,597 (35.0%) | 3 | 1–5 | 137 | 51–244 | 12.74 | 12.62–12.85 | 
| 3rd quintile | 337,003 | 113,620 (33.7%) | 3 | 1–5 | 135 | 51–241 | 12.44 | 12.33–12.55 | 
| 4th quintile | 299,113 | 95,158 (31.8%) | 3 | 1–5 | 130 | 48–235 | 11.51 | 11.39–11.62 | 
| 5th quintile (least deprived) | 347,070 | 103,763 (29.9%) | 3 | 1–5 | 123 | 46–225 | 10.65 | 10.55–10.75 | 
| UKHLS | Total | MLTCs (row %) | Median # of hospitalisation dayse | IQR (hosp. days) | Median # GP visitse | IQR (GP visits) | |
|---|---|---|---|---|---|---|---|
| Age | |||||||
| 18–36 years | 16,105 | 689 (04.1%) | 3 | 1–6 | 7 | 3–13.5 | NA | 
| 37–54 years | 16,726 | 2184 (13.1%) | 3 | 1–9 | 8 | 4–15 | NA | 
| 55–73 years | 12,308 | 4117 (33.5%) | 5 | 2–14 | 11 | 6–19 | NA | 
| 74+ years | 4047 | 1886 (46.6%) | 9 | 3–24 | 10 | 4.5–18.5 | NA | 
| Sexc | |||||||
| Male | 23,202 | 3588 (40.3%) | 4 | 1–12 | 5.5 | 1.5–12.5 | NA | 
| Female | 27,709 | 5308 (59.7%) | 4 | 1–8 | 8.5 | 4–16.5 | NA | 
IQR, Interquartile range; MLTC, Multiple long term conditions; CI, Confidence intervals.
Lower quintiles indicate lower deprivation.
Lower quintiles indicate higher deprivation.
Two individuals were marked as “inconsistent sex data”.
Number of days where any Read code was entered by a primary care provider over 10-year follow-up period.
Self-reported GP use and hospitalisations over 5-years for which data was available during the 10-year follow-up period.