Table 1.
Baseline characteristics of the study population (N=74,603)
| Women (n=46,823) | Men (n=27,780) | |
|---|---|---|
| BI median (IQR)/mean (SD) | 55 (30–77)/53 (29) | 52 (26–77)/51 (30) |
| 80–100, n (%) | 9,970 (21.3) | 5,834 (21.0) |
| 50–79, n (%) | 14,683 (31.4) | 7,828 (28.2) |
| 25–49, n (%) | 10,375 (22.2) | 6,105 (22.0) |
| 0–24, n (%) | 8,981 (19.2) | 6,192 (22.3) |
| Missing, n (%) | 2,814 (6.0) | 1,821 (6.6) |
| Age (years), median (IQR)/mean (SD) | 84 (79–89)/83 (7) | 81 (76–86)/81 (7) |
| 65–74, n (%) | 6,118 (13.1) | 5,959 (21.5) |
| 75–84, n (%) | 18,365 (39.2) | 12,246 (44.1) |
| 85–94, n (%) | 20,095 (42.9) | 8,898 (32.0) |
| ≥95, n (%) | 2,245 (4.8) | 677 (2.4) |
| Marital status, n (%) | ||
| Unmarried | 2,733 (5.8) | 2,118 (7.6) |
| Married | 8,271 (17.7) | 13,372 (48.1) |
| Divorced | 5,765 (12.3) | 3,444 (12.4) |
| Widowed | 30,047 (64.2) | 8,839 (31.8) |
| Missing | 7 (0.0) | 7 (0.0) |
| Period of admission | ||
| 2005–2009 | 20,435 (43.6) | 10,928 (39.3) |
| 2010–2014 | 26,388 (56.4) | 16,852 (60.7) |
| BMI (kg/m2), mean (SD) | 23.6 (5.3) | 24.5 (4.7) |
| <18.5, n (%) | 5,448 (8.5) | 1,642 (4.7) |
| 18.5–24.9, n (%) | 18,983 (40.5) | 11,133 (40.1) |
| 25–29.9, n (%) | 8,660 (18.5) | 6,401 (23.0) |
| ≥30, n (%) | 4,098 (8.8) | 2,540 (9.1) |
| Missing, n (%) | 9,634 (20.6) | 6,064 (21.8) |
| CCI median (IQR)/mean (SD)a | 2 (1–3)/2.0 (1.9) | 2 (1–4)/2.6 (2.2) |
| 0, n (%) | 9,816 (21.0) | 3,357 (12.1) |
| 1–2, n (%) | 23,178 (49.5) | 12,234 (44.0) |
| ≥3, n (%) | 13,838 (29.5) | 12,188 (43.9) |
| Missing, n (%) | 1 (0.0) | 0 (0.0) |
| Number of drugs purchased (120 days), median (IQR)/mean (SD)b | 6 (4–9)/6.5 (3.8) | 6 (3–9)/6.3 (3.9) |
| 0, n (%) | 1,621 (3.5) | 1,235 (4.5) |
| 1–4, n (%) | 13,749 (29.4) | 8,693 (31.3) |
| 5–9, n (%) | 21,302 (45.5) | 11,956 (43.0) |
| ≥10, n (%) | 9,480 (20.3) | 5,358 (19.3) |
| Missing, n (%) | 671 (1.4) | 538 (1.9) |
| Prior hospital admission (1 year), median (IQR)/mean (SD)c | 0 (0–1)/0.9 (1.4) | 1 (0–2)/1.1 (1.7) |
| 0, n (%) | 25,930 (55.4) | 13,763 (49.5) |
| 1–2, n (%) | 16,479 (35.2) | 10,176 (36.6) |
| ≥3, n (%) | 4,413 (9.4) | 3,841 (13.8) |
| Missing, n (%) | 1 (0.0) | 0 (0.0) |
Notes:
The CCI was calculated based on hospital discharge diagnoses during 10 years before baseline.
All redeemed prescriptions were included, except from the following ATC codes: B05x (blood substitutes and perfusion solutions), B06x (other hematological agents), D09x (medicated dressings), J07x (vaccines), N01x (anesthetics), and Vx (various); medications were counted at the fourth level of the ATC code, ie, including the first five digits of the ATC code (eg, salicylic acid and derivates: N02BA).
Based on hospital admissions during 1 year before baseline. Normal distributed data are presented with mean (SD), whereas non-normal distributed data are presented with both median (IQR) and mean (SD).
Abbreviations: ATC, Anatomical Therapeutic Chemical; BI, Barthel Index; BMI, body mass index; CCI, Charlson comorbidity index.