Table 1.

Baseline Characteristics of Patients

TotalAge Category
0–6 y7–18 y19–64 y65–74 y
No. of patients1 341 355185 560426 799712 21716 779
Age, mean ± SD, y26.6 ± 18.64.4 ± 1.511.5 ± 3.240.5 ± 11.967.9 ± 2.7
Male730 367 (54.5%)97 268 (52.4%)227 846 (53.4%)396 316 (55.7%)8937 (53.3%)
Underlying disease
 Asthma188 185 (14.0%)82 111 (44.3%)64 733 (15.2%)39 896 (5.6%)1445 (8.6%)
 Chronic bronchitis/emphysema33 756 (2.5%)3337 (1.8%)7162 (1.7%)21 698 (3.1%)1559 (9.3%)
 Cardiovascular disease87 470 (6.5%)5020 (2.7%)11 082 (2.6%)65 716 (9.2%)5652 (33.7%)
 Cerebrovascular disease29 463 (2.2%)234 (0.13%)1023 (0.24%)25 114 (3.5%)3092 (18.4%)
 Neurological disease141 511 (10.6%)2846 (1.5%)18 162 (4.3%)115 756 (16.3%)4747 (28.3%)
 Liver disease24 265 (1.8%)357 (0.19%)1250 (0.29%)21 376 (3.0%)1282 (7.6%)
 Renal disease24 880 (1.9%)2852 (1.5%)7123 (1.7%)13 969 (2.0%)936 (5.6%)
 Diabetes mellitus65 384 (4.9%)161 (0.09%)1770 (0.41%)58 085 (8.2%)5368 (32.0%)
 Malignant tumor20 927 (1.6%)216 (0.12%)902 (0.21%)17 665 (2.5%)2144 (12.8%)
 Collagen vascular disease22 079 (1.7%)2953 (1.6%)4991 (1.2%)13 305 (1.9%)830 (5.0%)
 Immunosuppression16 063 (1.2%)1268 (0.68%)2951 (0.69%)11 199 (1.6%)645 (3.8%)
Inpatient at influenza diagnosis1477 (0.11%)567 (0.31%)268 (0.06%)545 (0.08%)97 (0.58%)
No. of influenza occurrences per season
 11 312 005 (97.8%)176 014 (94.9%)413 726 (96.9%)705 589 (99.1%)16 676 (99.4%)
 228 914 (2.2%)9326 (5.0%)12 910 (3.0%)6577 (0.92%)101 (0.60%)
 ≥3436 (0.03%)220 (0.12%)163 (0.04%)51 (0.01%)2 (0.01%)
Types of influenza virus
 A622 679 (46.4%)85 450 (46.1%)171 212 (40.1%)358 012 (50.3%)8005 (47.7%)
 B293 378 (21.9%)41 382 (22.3%)118 944 (27.9%)129 526 (18.2%)3526 (21.0%)
 Unknown425 298 (31.7%)58 728 (31.7%)136 643 (32.0%)224 679 (31.6%)5248 (31.3%)
Anti-influenza drug
 Baloxavir276 595 (20.6%)12 429 (6.7%)82 217 (19.3%)178 094 (25.0%)3855 (23.0%)
 Oseltamivir369 583 (27.6%)139 252 (75.0%)59 624 (14.0%)165 742 (23.3%)4965 (29.6%)
 Laninamivir476 355 (35.5%)12 571 (6.8%)180 809 (42.4%)277 154 (38.9%)5821 (34.7%)
 Zanamivir122 851 (9.2%)5825 (3.1%)80 537 (18.9%)35 907 (5.0%)582 (3.5%)
 Peramivir21 777 (1.6%)1532 (0.83%)3955 (0.93%)15 627 (2.2%)663 (4.0%)
 No prescription74 194 (5.5%)13 951 (7.5%)19 657 (4.6%)39 693 (5.6%)893 (5.3%)
TotalAge Category
0–6 y7–18 y19–64 y65–74 y
No. of patients1 341 355185 560426 799712 21716 779
Age, mean ± SD, y26.6 ± 18.64.4 ± 1.511.5 ± 3.240.5 ± 11.967.9 ± 2.7
Male730 367 (54.5%)97 268 (52.4%)227 846 (53.4%)396 316 (55.7%)8937 (53.3%)
Underlying disease
 Asthma188 185 (14.0%)82 111 (44.3%)64 733 (15.2%)39 896 (5.6%)1445 (8.6%)
 Chronic bronchitis/emphysema33 756 (2.5%)3337 (1.8%)7162 (1.7%)21 698 (3.1%)1559 (9.3%)
 Cardiovascular disease87 470 (6.5%)5020 (2.7%)11 082 (2.6%)65 716 (9.2%)5652 (33.7%)
 Cerebrovascular disease29 463 (2.2%)234 (0.13%)1023 (0.24%)25 114 (3.5%)3092 (18.4%)
 Neurological disease141 511 (10.6%)2846 (1.5%)18 162 (4.3%)115 756 (16.3%)4747 (28.3%)
 Liver disease24 265 (1.8%)357 (0.19%)1250 (0.29%)21 376 (3.0%)1282 (7.6%)
 Renal disease24 880 (1.9%)2852 (1.5%)7123 (1.7%)13 969 (2.0%)936 (5.6%)
 Diabetes mellitus65 384 (4.9%)161 (0.09%)1770 (0.41%)58 085 (8.2%)5368 (32.0%)
 Malignant tumor20 927 (1.6%)216 (0.12%)902 (0.21%)17 665 (2.5%)2144 (12.8%)
 Collagen vascular disease22 079 (1.7%)2953 (1.6%)4991 (1.2%)13 305 (1.9%)830 (5.0%)
 Immunosuppression16 063 (1.2%)1268 (0.68%)2951 (0.69%)11 199 (1.6%)645 (3.8%)
Inpatient at influenza diagnosis1477 (0.11%)567 (0.31%)268 (0.06%)545 (0.08%)97 (0.58%)
No. of influenza occurrences per season
 11 312 005 (97.8%)176 014 (94.9%)413 726 (96.9%)705 589 (99.1%)16 676 (99.4%)
 228 914 (2.2%)9326 (5.0%)12 910 (3.0%)6577 (0.92%)101 (0.60%)
 ≥3436 (0.03%)220 (0.12%)163 (0.04%)51 (0.01%)2 (0.01%)
Types of influenza virus
 A622 679 (46.4%)85 450 (46.1%)171 212 (40.1%)358 012 (50.3%)8005 (47.7%)
 B293 378 (21.9%)41 382 (22.3%)118 944 (27.9%)129 526 (18.2%)3526 (21.0%)
 Unknown425 298 (31.7%)58 728 (31.7%)136 643 (32.0%)224 679 (31.6%)5248 (31.3%)
Anti-influenza drug
 Baloxavir276 595 (20.6%)12 429 (6.7%)82 217 (19.3%)178 094 (25.0%)3855 (23.0%)
 Oseltamivir369 583 (27.6%)139 252 (75.0%)59 624 (14.0%)165 742 (23.3%)4965 (29.6%)
 Laninamivir476 355 (35.5%)12 571 (6.8%)180 809 (42.4%)277 154 (38.9%)5821 (34.7%)
 Zanamivir122 851 (9.2%)5825 (3.1%)80 537 (18.9%)35 907 (5.0%)582 (3.5%)
 Peramivir21 777 (1.6%)1532 (0.83%)3955 (0.93%)15 627 (2.2%)663 (4.0%)
 No prescription74 194 (5.5%)13 951 (7.5%)19 657 (4.6%)39 693 (5.6%)893 (5.3%)
Table 1.

Baseline Characteristics of Patients

TotalAge Category
0–6 y7–18 y19–64 y65–74 y
No. of patients1 341 355185 560426 799712 21716 779
Age, mean ± SD, y26.6 ± 18.64.4 ± 1.511.5 ± 3.240.5 ± 11.967.9 ± 2.7
Male730 367 (54.5%)97 268 (52.4%)227 846 (53.4%)396 316 (55.7%)8937 (53.3%)
Underlying disease
 Asthma188 185 (14.0%)82 111 (44.3%)64 733 (15.2%)39 896 (5.6%)1445 (8.6%)
 Chronic bronchitis/emphysema33 756 (2.5%)3337 (1.8%)7162 (1.7%)21 698 (3.1%)1559 (9.3%)
 Cardiovascular disease87 470 (6.5%)5020 (2.7%)11 082 (2.6%)65 716 (9.2%)5652 (33.7%)
 Cerebrovascular disease29 463 (2.2%)234 (0.13%)1023 (0.24%)25 114 (3.5%)3092 (18.4%)
 Neurological disease141 511 (10.6%)2846 (1.5%)18 162 (4.3%)115 756 (16.3%)4747 (28.3%)
 Liver disease24 265 (1.8%)357 (0.19%)1250 (0.29%)21 376 (3.0%)1282 (7.6%)
 Renal disease24 880 (1.9%)2852 (1.5%)7123 (1.7%)13 969 (2.0%)936 (5.6%)
 Diabetes mellitus65 384 (4.9%)161 (0.09%)1770 (0.41%)58 085 (8.2%)5368 (32.0%)
 Malignant tumor20 927 (1.6%)216 (0.12%)902 (0.21%)17 665 (2.5%)2144 (12.8%)
 Collagen vascular disease22 079 (1.7%)2953 (1.6%)4991 (1.2%)13 305 (1.9%)830 (5.0%)
 Immunosuppression16 063 (1.2%)1268 (0.68%)2951 (0.69%)11 199 (1.6%)645 (3.8%)
Inpatient at influenza diagnosis1477 (0.11%)567 (0.31%)268 (0.06%)545 (0.08%)97 (0.58%)
No. of influenza occurrences per season
 11 312 005 (97.8%)176 014 (94.9%)413 726 (96.9%)705 589 (99.1%)16 676 (99.4%)
 228 914 (2.2%)9326 (5.0%)12 910 (3.0%)6577 (0.92%)101 (0.60%)
 ≥3436 (0.03%)220 (0.12%)163 (0.04%)51 (0.01%)2 (0.01%)
Types of influenza virus
 A622 679 (46.4%)85 450 (46.1%)171 212 (40.1%)358 012 (50.3%)8005 (47.7%)
 B293 378 (21.9%)41 382 (22.3%)118 944 (27.9%)129 526 (18.2%)3526 (21.0%)
 Unknown425 298 (31.7%)58 728 (31.7%)136 643 (32.0%)224 679 (31.6%)5248 (31.3%)
Anti-influenza drug
 Baloxavir276 595 (20.6%)12 429 (6.7%)82 217 (19.3%)178 094 (25.0%)3855 (23.0%)
 Oseltamivir369 583 (27.6%)139 252 (75.0%)59 624 (14.0%)165 742 (23.3%)4965 (29.6%)
 Laninamivir476 355 (35.5%)12 571 (6.8%)180 809 (42.4%)277 154 (38.9%)5821 (34.7%)
 Zanamivir122 851 (9.2%)5825 (3.1%)80 537 (18.9%)35 907 (5.0%)582 (3.5%)
 Peramivir21 777 (1.6%)1532 (0.83%)3955 (0.93%)15 627 (2.2%)663 (4.0%)
 No prescription74 194 (5.5%)13 951 (7.5%)19 657 (4.6%)39 693 (5.6%)893 (5.3%)
TotalAge Category
0–6 y7–18 y19–64 y65–74 y
No. of patients1 341 355185 560426 799712 21716 779
Age, mean ± SD, y26.6 ± 18.64.4 ± 1.511.5 ± 3.240.5 ± 11.967.9 ± 2.7
Male730 367 (54.5%)97 268 (52.4%)227 846 (53.4%)396 316 (55.7%)8937 (53.3%)
Underlying disease
 Asthma188 185 (14.0%)82 111 (44.3%)64 733 (15.2%)39 896 (5.6%)1445 (8.6%)
 Chronic bronchitis/emphysema33 756 (2.5%)3337 (1.8%)7162 (1.7%)21 698 (3.1%)1559 (9.3%)
 Cardiovascular disease87 470 (6.5%)5020 (2.7%)11 082 (2.6%)65 716 (9.2%)5652 (33.7%)
 Cerebrovascular disease29 463 (2.2%)234 (0.13%)1023 (0.24%)25 114 (3.5%)3092 (18.4%)
 Neurological disease141 511 (10.6%)2846 (1.5%)18 162 (4.3%)115 756 (16.3%)4747 (28.3%)
 Liver disease24 265 (1.8%)357 (0.19%)1250 (0.29%)21 376 (3.0%)1282 (7.6%)
 Renal disease24 880 (1.9%)2852 (1.5%)7123 (1.7%)13 969 (2.0%)936 (5.6%)
 Diabetes mellitus65 384 (4.9%)161 (0.09%)1770 (0.41%)58 085 (8.2%)5368 (32.0%)
 Malignant tumor20 927 (1.6%)216 (0.12%)902 (0.21%)17 665 (2.5%)2144 (12.8%)
 Collagen vascular disease22 079 (1.7%)2953 (1.6%)4991 (1.2%)13 305 (1.9%)830 (5.0%)
 Immunosuppression16 063 (1.2%)1268 (0.68%)2951 (0.69%)11 199 (1.6%)645 (3.8%)
Inpatient at influenza diagnosis1477 (0.11%)567 (0.31%)268 (0.06%)545 (0.08%)97 (0.58%)
No. of influenza occurrences per season
 11 312 005 (97.8%)176 014 (94.9%)413 726 (96.9%)705 589 (99.1%)16 676 (99.4%)
 228 914 (2.2%)9326 (5.0%)12 910 (3.0%)6577 (0.92%)101 (0.60%)
 ≥3436 (0.03%)220 (0.12%)163 (0.04%)51 (0.01%)2 (0.01%)
Types of influenza virus
 A622 679 (46.4%)85 450 (46.1%)171 212 (40.1%)358 012 (50.3%)8005 (47.7%)
 B293 378 (21.9%)41 382 (22.3%)118 944 (27.9%)129 526 (18.2%)3526 (21.0%)
 Unknown425 298 (31.7%)58 728 (31.7%)136 643 (32.0%)224 679 (31.6%)5248 (31.3%)
Anti-influenza drug
 Baloxavir276 595 (20.6%)12 429 (6.7%)82 217 (19.3%)178 094 (25.0%)3855 (23.0%)
 Oseltamivir369 583 (27.6%)139 252 (75.0%)59 624 (14.0%)165 742 (23.3%)4965 (29.6%)
 Laninamivir476 355 (35.5%)12 571 (6.8%)180 809 (42.4%)277 154 (38.9%)5821 (34.7%)
 Zanamivir122 851 (9.2%)5825 (3.1%)80 537 (18.9%)35 907 (5.0%)582 (3.5%)
 Peramivir21 777 (1.6%)1532 (0.83%)3955 (0.93%)15 627 (2.2%)663 (4.0%)
 No prescription74 194 (5.5%)13 951 (7.5%)19 657 (4.6%)39 693 (5.6%)893 (5.3%)
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