{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:MA5O5B5ARZN6VG2AHDKYX6V227","short_pith_number":"pith:MA5O5B5A","schema_version":"1.0","canonical_sha256":"603aee87a08e5bea9b4038d58bfabad7ff04eea0912dffbb96250310ce2e5810","source":{"kind":"arxiv","id":"1609.00031","version":1},"attestation_state":"computed","paper":{"title":"A Nonparametric Maximum Likelihood Approach for Partially Observed Cured Data with Left Truncation and Right-Censoring","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Christina D. Chambers, Jue Hou, Ronghui Xu","submitted_at":"2016-08-31T20:38:31Z","abstract_excerpt":"Partially observed cured data occur in the analysis of spontaneous abortion (SAB) in observational studies in pregnancy. In contrast to the traditional cured data, such data has an observable `cured' portion as women who do not abort spontaneously. The data is also subject to left truncate in addition to right-censoring because women may enter or withdraw from a study any time during their pregnancy. Left truncation in particular causes unique bias in the presence of a cured portion. In this paper, we study a cure rate model and develop a conditional nonparametric maximum likelihood approach. "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1609.00031","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"stat.ME","submitted_at":"2016-08-31T20:38:31Z","cross_cats_sorted":[],"title_canon_sha256":"223efaabbbdfc87082fd5d34dee722e66a6b6b11833acc0a0da611a9108f91c5","abstract_canon_sha256":"522b8513ef1fc61c3a9fe9d287bddeba81ed9756c3471e513c56ac4d20e33413"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:06:28.211416Z","signature_b64":"vTdt8Hh9rlyzHfgKWKr+dpdYLIUL/cR6PEVVhzUgOnmzwBQrgKJjHccV3UqKhkKHmJetUZvwHfLPqMSOej83Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"603aee87a08e5bea9b4038d58bfabad7ff04eea0912dffbb96250310ce2e5810","last_reissued_at":"2026-05-18T01:06:28.210944Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:06:28.210944Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Nonparametric Maximum Likelihood Approach for Partially Observed Cured Data with Left Truncation and Right-Censoring","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"stat.ME","authors_text":"Christina D. Chambers, Jue Hou, Ronghui Xu","submitted_at":"2016-08-31T20:38:31Z","abstract_excerpt":"Partially observed cured data occur in the analysis of spontaneous abortion (SAB) in observational studies in pregnancy. In contrast to the traditional cured data, such data has an observable `cured' portion as women who do not abort spontaneously. The data is also subject to left truncate in addition to right-censoring because women may enter or withdraw from a study any time during their pregnancy. Left truncation in particular causes unique bias in the presence of a cured portion. In this paper, we study a cure rate model and develop a conditional nonparametric maximum likelihood approach. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.00031","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1609.00031","created_at":"2026-05-18T01:06:28.211012+00:00"},{"alias_kind":"arxiv_version","alias_value":"1609.00031v1","created_at":"2026-05-18T01:06:28.211012+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.00031","created_at":"2026-05-18T01:06:28.211012+00:00"},{"alias_kind":"pith_short_12","alias_value":"MA5O5B5ARZN6","created_at":"2026-05-18T12:30:32.724797+00:00"},{"alias_kind":"pith_short_16","alias_value":"MA5O5B5ARZN6VG2A","created_at":"2026-05-18T12:30:32.724797+00:00"},{"alias_kind":"pith_short_8","alias_value":"MA5O5B5A","created_at":"2026-05-18T12:30:32.724797+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227","json":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227.json","graph_json":"https://pith.science/api/pith-number/MA5O5B5ARZN6VG2AHDKYX6V227/graph.json","events_json":"https://pith.science/api/pith-number/MA5O5B5ARZN6VG2AHDKYX6V227/events.json","paper":"https://pith.science/paper/MA5O5B5A"},"agent_actions":{"view_html":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227","download_json":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227.json","view_paper":"https://pith.science/paper/MA5O5B5A","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1609.00031&json=true","fetch_graph":"https://pith.science/api/pith-number/MA5O5B5ARZN6VG2AHDKYX6V227/graph.json","fetch_events":"https://pith.science/api/pith-number/MA5O5B5ARZN6VG2AHDKYX6V227/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227/action/storage_attestation","attest_author":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227/action/author_attestation","sign_citation":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227/action/citation_signature","submit_replication":"https://pith.science/pith/MA5O5B5ARZN6VG2AHDKYX6V227/action/replication_record"}},"created_at":"2026-05-18T01:06:28.211012+00:00","updated_at":"2026-05-18T01:06:28.211012+00:00"}