Appendix
B
Basic
tables
A. Hospital Admissions
Data:
Table
A1: List of HA hospitals included in the study
|
Hospital |
Information
system* |
Whether
A&E |
| 1. |
Kong
Wah Hospital (KWH) |
MRAS |
Yes |
| 2. |
Our
Lady of Maryknoll Hospital (OLM) |
IPAS |
No |
| 3. |
Princess
Margaret Hospital (PMH) |
IPAS/MRAS |
Yes |
| 4. |
Pok
Oi Hospital (POH) |
IPAS |
Yes |
| 5. |
Prince
of Wales Hospital (PWH) |
MRAS |
Yes |
| 6. |
Pamela
Youde Nethersole Hospital (PYN) |
MRAS |
Yes |
| 7. |
Queen
Elizabeth Hospital (QEH) |
MRAS |
Yes |
| 8. |
Queen
Mary Hospital (QMH) |
IPAS/MRAS |
Yes |
| 9. |
Ruttonjee
Hospital (RH) |
MRAS |
No |
| 10. |
Tuen
Mun Hospital (TMH) |
MRAS |
Yes |
| 11. |
United
Christian Hospital (UCH) |
MRAS |
Yes |
| 12. |
Yan
Chai Hospital (YCH) |
IPAS/MRAS |
Yes |
* IPAS
- Integrated Patient Administrative System
MRAS
- Medical Records Abstracting System
Table
A2.1: Number of hospital admissions by disease groups
| Disease
groups |
1995
|
1996
|
1997
|
1998*
|
| I. |
Diseases
of the Circulatory System (ICD9 390-459): |
|
|
|
|
| |
Acute
rheumatic fever (390-392) |
32
|
12
|
23
|
8
|
| |
Chronic
rheumatic heart disease (393-398) |
1,572
|
1,626
|
1,338
|
530
|
| |
Hypertensive
disease (401-405) |
4,396
|
4,319
|
4,187
|
1,981
|
| |
Ischaemic
heart disease (410-414) |
12,281
|
13,743
|
13,459
|
6,940
|
| |
Disease
of pulmonary circulation (415-417) |
291
|
274
|
289
|
168
|
| |
Other
forms of heart disease (420-429) |
15,494
|
17,568
|
17,246
|
9,208
|
| |
Cerebrovascular
disease (430-438) |
12,489
|
13,331
|
13,399
|
6,620
|
| |
Diseases
of arteries, arterioles and capillaries
(440-448)
|
1,909
|
2,145
|
1,894
|
1,097
|
| |
Diseases
of viens and lymphatics, and other diseases of circulatory
system (451-459)
|
5,591
|
6,448
|
6,594
|
2,996
|
| |
Sub-total:
|
54,055
|
59,466
|
58,429
|
29,548
|
| II. |
Diseases
of the Respiratory System (ICD9 460-519): |
|
|
|
| |
Acute
respiratory infections (460-466) |
13,845
|
16,906
|
18,807
|
11,505
|
| |
Other
diseases of upper respiratory tract (470-478)
|
3,005
|
3,650
|
3,328
|
1,746
|
| |
Pneumonia
and influenza (480-487) |
12,569
|
14,954
|
10,396
|
52,699
|
| |
Chronic
obstructive pulmonary disease and allied conditions
(490-496)
|
25,330
|
28,344
|
26,780
|
14,081
|
| |
Pneumoconioses
and other lung diseases due to external agents (500-508)
|
386
|
471
|
545
|
301
|
| |
Other
diseases of respiratory system (510-519)
|
11,358
|
13,481
|
14,686
|
8,848
|
| |
Sub-total:
|
66,493
|
77,806
|
78,926
|
46,877
|
| I
& II |
Total:
|
120,548
|
137,272
|
137,355
|
76,425
|
* first
half year
Table
A2.2: Number of hospital admissions by specific disease group
|
Disease
|
1995
|
1996
|
1997
|
1998*
|
|
Respiratory
(ICD9: 460-519)
|
66,493
|
77,806
|
78,926
|
46,877
|
|
Aged
0-14
|
23,421
|
25,551
|
25,192
|
16,450
|
|
Aged
15-64
|
15,170
|
16,733
|
17,006
|
9,451
|
|
Aged
65-74
|
11,214
|
13,695
|
13,874
|
7,640
|
|
Aged
75+
|
16,667
|
21,814
|
22,837
|
13,329
|
| Chronic
obstructive pulmonary disease
(ICD9:
490-496 excluding 493)
|
16,648
|
18,672
|
18,054
|
9,795
|
|
Asthma
(ICD-9 493)
|
8,682
|
9,672
|
8,726
|
4,286
|
|
Aged
0-14
|
4,437
|
5,156
|
4,412
|
2,133
|
|
Aged
15-64
|
2,855
|
2,929
|
2,736
|
1,332
|
|
Cardiac
(ICD9: 390-429)
|
34,066
|
37,542
|
36,542
|
18,835
|
|
Aged
15-64
|
12,195
|
13,051
|
11,949
|
5,961
|
|
Aged
65-74
|
9,912
|
11,098
|
11,195
|
5,715
|
|
Aged
75+
|
11,437
|
12,918
|
13,001
|
6,976
|
|
Ischaemic
heart disease (ICD-9 410-414)
|
12,281
|
13,743
|
13,459
|
6,940
|
|
Aged
15-64
|
4,553
|
5,079
|
4,627
|
2,402
|
|
Aged
65-74
|
4,197
|
4,842
|
4,930
|
2,507
|
|
Aged
75+
|
3,507
|
3,806
|
3,888
|
2,029
|
* first
half year
Note: The total number of admissions by age groups may not
be equal to the total due to missing age field in the data.
Table
A3.1: Summary statistics of daily hospital admissions due to
respiratory disease by 3 month periods
| Period |
No.
(days) |
Mean
|
SD
|
Min |
P25 |
Median |
P75
|
Max
|
| Jan-Mar
95 : |
90 |
189.4 |
34.61 |
116 |
164 |
186
|
212
|
287
|
| Apr-Jun
95 : |
91 |
190.5 |
26.42 |
132 |
173 |
191
|
205
|
260
|
| Jul-Sep
95 : |
92 |
174.5 |
17.96 |
133 |
163 |
173
|
188
|
213
|
| Oct-Dec
95 : |
92 |
174.5 |
23.93 |
120 |
156 |
175
|
187
|
240
|
| Jan-Dec
95 : |
365 |
182.2 |
27.37 |
116 |
164 |
181
|
198
|
287
|
| Jan-Mar
96 : |
91 |
216 |
42.67 |
134 |
181 |
215
|
250
|
319
|
| Apr-Jun
96 : |
91 |
234.7 |
30.87 |
167 |
213 |
231
|
254
|
315
|
| Jul-Sep
96 : |
92 |
206 |
43.72 |
147 |
173 |
192
|
239
|
320
|
| Oct-Dec
96 : |
92 |
193.9 |
26.97 |
143 |
172 |
193
|
213
|
272
|
| Jan-Dec
96 : |
366 |
212.6 |
39.56 |
134 |
180 |
209
|
241
|
320
|
| Jan-Mar
97 : |
90 |
202.6 |
27.02 |
133 |
186 |
201
|
216
|
264
|
| Apr-Jun
97 : |
91 |
249.3 |
29 |
199 |
227 |
246
|
267
|
335
|
| Jul-Sep
97 : |
92 |
202 |
33.19 |
140 |
178 |
198
|
223
|
298
|
| Oct-Dec
97 : |
92 |
211.1 |
39.86 |
156 |
184 |
202
|
225
|
330
|
| Jan-Dec
97 : |
365 |
216.2 |
37.89 |
133 |
189 |
211
|
240
|
335
|
| Jan-Mar
98 : |
90 |
279.7 |
50.69 |
174 |
232 |
282
|
314
|
389
|
| Apr-Jun
98 : |
91 |
238.5 |
19.31 |
193 |
225 |
238
|
254
|
288
|
Min: Minimum;
P25: 25% centile; P75: 75% centile; Max: Maximum
Table
A3.2: Summary statistics of daily hospital admissions due
to COPD (excluding asthma) by 3-month periods
| Period |
No.
(days) |
Mean
|
SD
|
Min
|
P25
|
Median
|
P75
|
Max
|
| Jan-Mar
95 : |
90 |
54.19 |
11.4 |
31
|
46
|
54
|
63
|
82
|
| Apr-Jun
95 : |
91 |
44.23 |
9.59 |
26
|
39
|
44
|
50
|
74
|
| Jul-Sep
95 : |
92 |
39.82 |
8.43 |
22
|
34
|
39
|
45
|
63
|
| Oct-Dec
95 : |
92 |
44.38 |
10.79 |
26
|
36
|
44
|
52
|
71
|
| Jan-Dec
95 : |
365 |
45.61 |
11.35 |
22
|
37
|
44
|
53
|
82
|
| Jan-Mar
96 : |
91 |
61.23 |
14.22 |
33
|
50
|
61
|
75
|
94
|
| Apr-Jun
96 : |
91 |
56.24 |
12.67 |
31
|
47
|
56
|
62
|
92
|
| Jul-Sep
96 : |
92 |
43.33 |
10.11 |
26
|
36
|
41
|
50
|
72
|
| Oct-Dec
96 : |
92 |
43.43 |
9.79 |
22
|
38
|
44
|
49
|
68
|
| Jan-Dec
96 : |
366 |
51.02 |
14.18 |
22
|
41
|
49
|
60
|
94
|
| Jan-Mar
97 : |
90 |
54.01 |
9.64 |
29
|
49
|
54
|
59
|
79
|
| Apr-Jun
97 : |
91 |
54.18 |
9.49 |
35
|
49
|
52
|
62
|
79
|
| Jul-Sep
97 : |
92 |
44.91 |
8.76 |
26
|
40
|
45
|
50
|
68
|
| Oct-Dec
97 : |
92 |
44.9 |
9.24 |
24
|
39
|
43
|
52
|
67
|
| Jan-Dec
97 : |
365 |
49.46 |
10.33 |
24
|
42
|
49
|
55
|
79
|
| Jan-Mar
98 : |
90 |
60.11 |
12.05 |
35
|
52
|
59
|
68
|
90
|
| Apr-Jun
98 : |
91 |
48.19 |
8.15 |
32
|
42
|
48
|
54
|
72
|
Min: Minimum;
P25: 25% centile; P75: 75% centile; Max: Maximum
Table
A3.3: Summary statistics of daily hospital admissions due
to asthma disease by 3-month periods
| Period |
No.
(days) |
Mean |
SD
|
Min |
P25
|
Median
|
P75
|
Max
|
| Jan-Mar
95 : |
90 |
24.11 |
7.08 |
12 |
18
|
24
|
29
|
46
|
| Apr-Jun
95 : |
91 |
21.93 |
6.89 |
9 |
17
|
22
|
26
|
43
|
| Jul-Sep
95 : |
92 |
20.97 |
6.24 |
10 |
16
|
21
|
24
|
40
|
| Oct-Dec
95 : |
92 |
28.12 |
7.7 |
14 |
22
|
27
|
34
|
46
|
| Jan-Dec
95 : |
365 |
23.79 |
7.5 |
9 |
18
|
23
|
29
|
46
|
| Jan-Mar
96 : |
91 |
23.37 |
6.64 |
12 |
19
|
23
|
26
|
47
|
| Apr-Jun
96 : |
91 |
25.11 |
6.73 |
11 |
21
|
24
|
30
|
48
|
| Jul-Sep
96 : |
92 |
24.33 |
6.16 |
11 |
21
|
23
|
28
|
41
|
| Oct-Dec
96 : |
92 |
32.85 |
12.09 |
14 |
23
|
31
|
41
|
63
|
| Jan-Dec
96 : |
366 |
26.43 |
9.07 |
| |
