Table 1.
Descriptive characteristics of the study population in CPRD
| PIP (n = 723,838) | No PIP (n = 295,653) | |
|---|---|---|
|
Gender |
|
|
| -Male (%) |
122,817 (28.7) |
304,622 (71.3) |
| -Female (%) |
172,834 (29.2) |
419,211 (70.8) |
| -Missing (%) |
2 |
|
|
Age (years) |
|
|
| -70–74 (%) |
82,177 (37.4) |
137,366 (62.6) |
| -75–80 (%) |
92,488 (37.6) |
153,778 (62.4) |
| -81–85 (%) |
62,407 (33.1) |
126,040 (66.9) |
| - > 85 (%) |
58,581 (18) |
306,654 (84) |
|
Morbidities (Charlson morbidity index score) |
|
|
| -1 (%) |
189,864 (28.3) |
481,983 (71.7) |
| -2 (%) |
52,365 (46.8) |
59,519 (53.2) |
| -3 (%) |
53,424 (22.7) |
182,336 (77.3) |
|
Polypharmacy (≥4 medications) |
|
|
| -Never (%) |
114,816 (14.6) |
669,572 (85.3) |
| -Ever (%) |
180,837 (76.9) |
54,266 (23.1) |
|
Chronic Obructive Pulmonary Disease |
|
|
| -No (%) |
277,497 (28.2) |
707,447 (71.8) |
| -Yes (%) |
18,156 (52.6) |
16,391 (47.5) |
|
Peptic ulcer |
|
|
| -No (%) |
274,487 (28.9) |
675,938 (71.1) |
| -Yes (%) |
21,166 (30.7) |
47,900 (69.4) |
|
Diabetes |
|
|
| -No (%) |
225,280 (27.3) |
625,591 (72.7) |
| -Yes (%) |
70,373 (41.7) |
98,247 (58.3) |
|
Dementia |
|
|
| -No (%) |
283,983 (28.5) |
710,985 (71.5) |
| -Yes (%) |
11,670 (47.6) |
12,853 (52.4) |
|
Hypertension |
|
|
| -No (%) |
140,467 (21.1) |
525,316 (78.9) |
| -Yes (%) |
155,186 (43.9) |
198,522 (56.1) |
|
Osteoarthritis |
|
|
| -No (%) |
216,981 (26.5) |
601,325 (73.5) |
| -Yes (%) |
78,672 (39.1) |
122,513 (60.9) |
|
Heart failure |
|
|
| -No (%) |
292,294 (29.0) |
715,868 (71.0) |
| -Yes (%) |
3,359 (29.7) |
7,970 (70.4) |
|
Parkinsonism |
|
|
| -No (%) |
290,071 (29.0) |
709,721 (71.0) |
| -Yes (%) | 5,582 (28.3) | 14,117 (71.7) |