Table 4.
Open cohort of females aged 15–49 years and males aged 15 – 54 years, 2003–2010, NUHDSS
| Females aged 15 - 49 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
|---|---|---|---|---|---|---|---|---|
| Population at start of year |
12686 |
14566 |
13983 |
14777 |
15219 |
15360 |
16318 |
17569 |
| Entered age group during year |
313 |
330 |
340 |
293 |
390 |
345 |
365 |
386 |
| In-migrated (from outside *DSA) during year |
4199 |
4620 |
4134 |
3700 |
3456 |
4048 |
4551 |
4086 |
| Died during year |
153 |
118 |
106 |
108 |
86 |
88 |
91 |
119 |
| Exited age group during year |
83 |
55 |
68 |
69 |
101 |
86 |
168 |
69 |
| Lost to follow-up during year (out-migrations) |
3125 |
5824 |
3650 |
3465 |
3770 |
3363 |
3525 |
3907 |
| Total person time contributed each year |
16191.3 |
16118.1 |
16663.6 |
17086.0 |
17527.0 |
17702.3 |
19789.4 |
19989.1 |
| **Out-migration rates |
0.19 |
0.36 |
0.22 |
0.20 |
0.22 |
0.19 |
0.18 |
0.20 |
|
Males aged 15 - 54 |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
| Population at start of year |
20245 |
22389 |
21019 |
21721 |
22021 |
22152 |
23116 |
24434 |
| Entered age group during year |
324 |
335 |
371 |
301 |
372 |
314 |
331 |
386 |
| In-migrated (from outside *DSA) during year |
4997 |
5658 |
4767 |
4545 |
4478 |
5107 |
5679 |
5121 |
| Died during year |
158 |
161 |
125 |
130 |
160 |
136 |
153 |
178 |
| Exited age group during year |
106 |
136 |
71 |
227 |
111 |
173 |
124 |
164 |
| Lost to follow-up during year (out-migrations) |
4259 |
7980 |
4528 |
4300 |
4653 |
4363 |
4480 |
4866 |
| Total person time contributed each year |
24371.4 |
23708.8 |
24169.6 |
24393.4 |
24874.4 |
25288.1 |
27321.2 |
27680.4 |
| **Out-migration rates | 0.17 | 0.34 | 0.19 | 0.18 | 0.19 | 0.17 | 0.16 | 0.18 |
*DSA Demographic Surveillance Area.
**Out-migration rates were calculated by dividing the number of persons who out-migrated each year by the total person years contributed by those present at the start of the year and those who in-migrated during the year.