Table 1 Baseline characteristics of participants before and after using propensity score matching methods.
From: Can Daily Walking Alone Reduce Pneumonia-Related Mortality among Older People?
Before matching | After matching | |||||
No walking habits | Walking habits | ASD | No walking habits | Walking habits | ASD | |
n = 86,121 | n = 46,327 | n = 44,627 | n = 44,627 | |||
Sex | 0.032 | 0.014 | ||||
Women: N (%) | 51,883 (60.2) | 28,629 (61.8) | 27,774 (62.2) | 27,465 (61.5) | ||
BMI, No (%) | 0.071 | 0.020 | ||||
18.5–24.9 | 55,169 (64.1) | 31,010 (66.9) | 30,376 (68.1) | 19,902 (67.0) | ||
<18.5 | 5,039 (5.9) | 2,858 (6.2) | 2,614 (5.9) | 2,823 (6.3) | ||
25.0–29.9 | 22,437 (26.1) | 10,949 (23.6) | 10,264 (23.0) | 10,435 (23.4) | ||
≥30 | 3,476 (4.0) | 1,510 (3.3) | 1,373 (3.1) | 1,467 (3.3) | ||
Smoking status: N (%) | 0.052 | 0.020 | ||||
Former/Nonsmoker | 75,923 (88.2) | 41,589 (89.8) | 40,265 (90.2) | 39,998 (89.6) | ||
Current smoker | 10,197 (11.8) | 4,738 (10.2) | 4,362 (9.8) | 4,629 (10.4) | ||
Missing | 1 (0.0) | — | — | — | ||
Alcohol habits: N (%) | 0.025 | 0.007 | ||||
Rarely/Never | 50,439 (58.6) | 27,634 (59.7) | 26,569 (59.5) | 26,332 (59.0) | ||
Sometimes | 16,571 (19.2) | 9,035 (19.5) | 8,644 (19.4) | 8,806 (19.7) | ||
Everyday | 18,683 (21.7) | 9,489 (20.5) | 9,273 (20.8) | 9,323 (20.9) | ||
Missing | 428 (0.5) | 169 (0.4) | 141 (0.3) | 166 (0.4) | ||
Age: mean (SD), years | 69.2 (2.9) | 69.3 (2.8) | 0.018 | 69.2 (2.9) | 69.2 (2.9) | 0.001 |
Residential municipality | 0.102 | 0.020 | ||||
