Understanding Society, the UK Household Longitudinal Survey & British Household Panel Survey (UKHLS) Datasets#
Last modified: 28 Sep 2026
1. Datasets#
Table 1: Datasets and metrics in the UK LLC belonging to UKHLS.
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| Dataset | Dataset Name | # Participants | # Observations | # Variables |
|---|---|---|---|---|
| a_indresp | Main interview data wave01 | 50707 | 50707 | 1386 |
| b_indresp | Nurse interview data wave01 | 54229 | 54229 | 1647 |
| b_indresp_ns | Main interview data wave02 | 15468 | 15468 | 276 |
| c_indresp | Main interview data wave03 | 49346 | 49346 | 3089 |
| c_indresp_ns | Nurse interview data wave02 | 5013 | 5013 | 267 |
| ca_indresp_w | Covid Study interview data wave01 | 17395 | 17395 | 464 |
| cb_indresp_w | Covid Study interview data wave02 | 14447 | 14447 | 506 |
| cc_indresp_w | Covid Study interview data wave03 | 13757 | 13757 | 769 |
| cd_indresp_w | Covid Study interview data wave04 | 13398 | 13398 | 755 |
| ce_indresp_w | Covid Study interview data wave05 | 12524 | 12524 | 1038 |
| cf_indresp_w | Covid Study interview data wave06 | 11693 | 11693 | 913 |
| cg_indresp_w | Covid Study interview data wave07 | 11626 | 11626 | 807 |
| ch_indresp_w | Covid Study interview data wave08 | 12287 | 12287 | 877 |
| ch_serology | Sreology processing and results | 12962 | 12962 | 19 |
| ci_indresp_w | Covid Study interview data wave09 | 12507 | 12507 | 749 |
| d_indresp | Main interview data wave04 | 46719 | 46719 | 2098 |
| e_indresp | Main interview data wave05 | 44482 | 44482 | 2612 |
| f_indresp | Main interview data wave06 | 44828 | 44828 | 2098 |
| g_indresp | Main interview data wave07 | 41801 | 41801 | 2837 |
| h_indresp | Main interview data wave08 | 38920 | 38920 | 2155 |
| i_indresp | Main interview data wave09 | 35683 | 35683 | 3167 |
| j_indresp | Main interview data wave10 | 33950 | 33950 | 2471 |
| k_indresp | Main interview data wave11 | 31634 | 31634 | 3367 |
| l_indresp | Main interview data wave12 | 28914 | 28914 | 2760 |
| m_indresp | Main interview data wave13 | 27666 | 27666 | 3205 |
| n_indresp | Main interview data wave14 | 35182 | 35182 | 3961 |
| o_indresp | Main interview data wave15 | 32373 | 32373 | 3473 |
| xbaseline | Covid baseline data | 20068 | 20068 | 77 |
| xepigen_clocks_ns | Epigenetic Clocks | 3612 | 3612 | 25 |
| xindresp_ns | Individual interviews (Wave 2 & 3 combined) | 20481 | 20481 | 345 |
| xlabblood_ns | Blood results | 13135 | 13135 | 38 |
| xproteo_ns | Proteomics results | 6117 | 6117 | 192 |
| xsample | Covid sample data | 43665 | 43665 | 511 |