Hello everyone,

I am trying to do survival analysis on 2018 Nigeria Demographic and Health Survey Data.
The data has 33,924 observations, but after I expanded it to capture every month a child lived before death or censoring it got to 934,141 observations.

From what I understand from texts, 'sts list' and 'ltable t dead, noadjust' commands should give the same output.
But I'm getting different outputs:

'sts list' used 33,924 as its beginning total and at the end of the 60-month period, there are 88.28 percent children still alive, which looks about right. While,
'ltable t dead, noadjust' used 934,141 as its beginning total and at the end of the 60-month period, there are 99.39 children still alive.

Please, I want to understand what could be wrong, since both outputs should be the same.
What did I do wrong please?

Below is the dataex output

Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input float(t pid study_time) byte died float dead
 1 1 13 0 0
 2 1 13 0 0
 3 1 13 0 0
 4 1 13 0 0
 5 1 13 0 0
 6 1 13 0 0
 7 1 13 0 0
 8 1 13 0 0
 9 1 13 0 0
10 1 13 0 0
11 1 13 0 0
12 1 13 0 0
13 1 13 0 0
 1 2  9 0 0
 2 2  9 0 0
 3 2  9 0 0
 4 2  9 0 0
 5 2  9 0 0
 6 2  9 0 0
 7 2  9 0 0
 8 2  9 0 0
 9 2  9 0 0
 1 3 17 0 0
 2 3 17 0 0
 3 3 17 0 0
 4 3 17 0 0
 5 3 17 0 0
 6 3 17 0 0
 7 3 17 0 0
 8 3 17 0 0
 9 3 17 0 0
10 3 17 0 0
11 3 17 0 0
12 3 17 0 0
13 3 17 0 0
14 3 17 0 0
15 3 17 0 0
16 3 17 0 0
17 3 17 0 0
 1 4 31 0 0
 2 4 31 0 0
 3 4 31 0 0
 4 4 31 0 0
 5 4 31 0 0
 6 4 31 0 0
 7 4 31 0 0
 8 4 31 0 0
 9 4 31 0 0
10 4 31 0 0
11 4 31 0 0
12 4 31 0 0
13 4 31 0 0
14 4 31 0 0
15 4 31 0 0
16 4 31 0 0
17 4 31 0 0
18 4 31 0 0
19 4 31 0 0
20 4 31 0 0
21 4 31 0 0
22 4 31 0 0
23 4 31 0 0
24 4 31 0 0
25 4 31 0 0
26 4 31 0 0
27 4 31 0 0
28 4 31 0 0
29 4 31 0 0
30 4 31 0 0
31 4 31 0 0
 1 5 39 0 0
 2 5 39 0 0
 3 5 39 0 0
 4 5 39 0 0
 5 5 39 0 0
 6 5 39 0 0
 7 5 39 0 0
 8 5 39 0 0
 9 5 39 0 0
10 5 39 0 0
11 5 39 0 0
12 5 39 0 0
13 5 39 0 0
14 5 39 0 0
15 5 39 0 0
16 5 39 0 0
17 5 39 0 0
18 5 39 0 0
19 5 39 0 0
20 5 39 0 0
21 5 39 0 0
22 5 39 0 0
23 5 39 0 0
24 5 39 0 0
25 5 39 0 0
26 5 39 0 0
27 5 39 0 0
28 5 39 0 0
29 5 39 0 0
30 5 39 0 0
end

Thank you for your help.