Access to Information Orders
Decision Information
BACKGROUND: In 1996, the appellant, a medical researcher, sought access, under the Freedom of Information and Protection of Privacy Act (the Act ), to drug prescription data from the Ontario Drug Benefit (ODB) database, for the purpose of a drug utilization study. The ODB database is maintained by the Drug Programs Branch of the Ministry of Health and Long-Term Care (the Ministry). The appellant sought to link health card numbers of a certain group of patients to the ODB data. In early 1997, the Ministry decided to grant the appellant's request, and the Ministry and the appellant signed an agreement dated January 20, 1997 relating to the security and confidentiality of personal information (the agreement), as required by section 21(1)(e) of the Act and section 10 of Ontario Regulation 460 (the regulation) under the Act . (The signed agreement was provided to the appellant in March 1997). According to paragraph 1 of the agreement, the appellant was to use the data only for the following purpose: The data will be used in a pilot study to determine the drug utilization patterns of Mt. Sinai Hospital family medicine patients in order to investigate total drug burden, potential drug interactions and drug adverse effects, disease and utilization, and associations between drug prescribing and hospitalization. The agreement also stated the following (at paragraphs 1 and 5): This agreement is for a one-time feed only. A new agreement will be required for subsequent or future linkages. Upon receipt of the linkage, data analysis should be completed within a 6 month period. . . . . . The [appellant] will destroy all individual identifiers in the information by December 31, 1999. The data will be destroyed earlier if the research protocol permits. At the time the Ministry communicated its decision to grant access, the Ministry advised the appellant that "arrangements to gain access to the requested information should be made through the [Ministry's] Drug Program Branch. Please contact [named Ministry employee] at [specified telephone number]." The appellant states that he did in fact contact the named Ministry employee for the purpose of obtaining the ODB data, and sent him a list of health card numbers, on diskette. The appellant states that "work on data retrieval was subsequently begun by [two named Ministry employees] of the Ministry's Kingston office." However, the appellant never received any of the requested data from the Ministry. The appellant states that as a result of the unavailability of the data, he lost the financial support of a private sector sponsor for the drug utilization study. In 1999, the appellant received funding from Health Canada, a department of the federal government, for a proposed research project entitled "A Cohort Study of Air Quality and Utilization of Hospital Services" (the air pollution study). The purpose of the study was "to examine the effect of air pollution on respiratory and cardiac health." Subsequently, the appellant received approval for this study from the University of Toronto and McMaster University. In 1999, for the purpose of the air pollution study, the appellant sought access to the Ontario Hospital Insurance Plan (OHIP) and Canadian Institute for Health Information (CIHI) databases (both administered by the Ministry's Health Planning Branch). The appellant specifically sought claims and hospital discharge data from these sources. The Ministry decided to grant the appellant's request for access to the OHIP and CIHI databases, and the Ministry and the appellant signed an agreement relating to the security and confidentiality of personal information for this purpose. In 2000, the Ministry disclosed the OHIP and CIHI information to the appellant. In May 2000, the appellant wrote to the Ministry's Drug Programs Branch, indicating that he "once again had funding to support the [ODB] linkage, and wished once again to initiate the process" of access to the [ODB database]. The appellant states he did not receive a response from the Ministry despite repeated communications, and in August 2000 he wrote to the Minister complaining about the lack of response from the Ministry. Later in August 2000, the appellant wrote to the Ministry's Drug Programs Branch again seeking access to the ODB database for the purpose of the air pollution study and for another proposed study "for which funding applications are being submitted to the Heart and Stroke Foundation and to the Canadian Institutes of Health Research." The latter study concerned "prevention of stroke by management of risk factors such as high blood pressure, diabetes, and heart rhythm problems" (the stroke prevention study). The appellant enclosed with this letter a draft "Research and Confidentiality Agreement" between him and the Ministry regarding disclosure of ODB data for the air pollution and stroke prevention studies. Neither the appellant nor the Ministry ever signed this draft agreement. On December 8, 2000, the Ministry's Drug Programs Branch wrote to the appellant as follows: This is in regards to your request for the provision of [ODB] data for research purposes. As you are aware, the documentation pertaining to your request was forwarded to [the Ministry's] Legal Services [Branch] for review to ensure there are no confidentiality concerns prior to the release of data. We have been advised that a research agreement between the ministry and yourself would not be sufficient to allow for the release of ODB data for the purposes of conducting research as stated in sections 42(a) and 21(1)(e) under the [ Act ] as your request currently stands. Some of the concerns that were raised during the review include the following: that patient consent to disclose personal information was not obtained as part of the research protocol; that the use of an individual's OHIP number as part of this research study does not meet the provisions stated in the [ Health Cards and Numbers Control Act, 1991 ] i.e., health card numbers are intended to be used to obtain public health services and the collection of health card numbers for research purposes is not permitted unless designated in the Regulations; and there is a possibility that patients could be identified even if the personal identifiers are encrypted, due to matching of ODB data with other data provided by the ministry. As a result, we are unable to release the ODB data requested for your proposal as it is presently designed . . . The appellant responded to the Ministry's letter as follows: . . . Since you did not provide the rationale for your denial, allow me to address the specifics of the legislation that permit the approval of my request. You state that the release of this information is not permitted as "stated in sections 42(a) and 21(1)(e) under the [ Act ]. This is not correct. Section 21(1)(e) states that information may be released for a research purpose if, (i) the disclosure is consistent with the conditions or reasonable expectations of disclosure under which the personal information was provided, collected or obtained.
Decision Content
BACKGROUND:
In 1996, the appellant, a medical researcher, sought access, under the Freedom of Information and Protection of Privacy Act (the Act), to drug prescription data from the Ontario Drug Benefit (ODB) database, for the purpose of a drug utilization study. The ODB database is maintained by the Drug Programs Branch of the Ministry of Health and Long-Term Care (the Ministry). The appellant sought to link health card numbers of a certain group of patients to the ODB data. In early 1997, the Ministry decided to grant the appellant’s request, and the Ministry and the appellant signed an agreement dated January 20, 1997 relating to the security and confidentiality of personal information (the agreement), as required by section 21(1)(e) of the Act and section 10 of Ontario Regulation 460 (the regulation) under the Act. (The signed agreement was provided to the appellant in March 1997). According to paragraph 1 of the agreement, the appellant was to use the data only for the following purpose:
The data will be used in a pilot study to determine the drug utilization patterns of Mt. Sinai Hospital family medicine patients in order to investigate total drug burden, potential drug interactions and drug adverse effects, disease and utilization, and associations between drug prescribing and hospitalization.
The agreement also stated the following (at paragraphs 1 and 5):
This agreement is for a one-time feed only. A new agreement will be required for subsequent or future linkages. Upon receipt of the linkage, data analysis should be completed within a 6 month period.
. . . . .
The [appellant] will destroy all individual identifiers in the information by December 31, 1999. The data will be destroyed earlier if the research protocol permits.
At the time the Ministry communicated its decision to grant access, the Ministry advised the appellant that “arrangements to gain access to the requested information should be made through the [Ministry’s] Drug Program Branch. Please contact [named Ministry employee] at [specified telephone number].”
The appellant states that he did in fact contact the named Ministry employee for the purpose of obtaining the ODB data, and sent him a list of health card numbers, on diskette. The appellant states that “work on data retrieval was subsequently begun by [two named Ministry employees] of the Ministry’s Kingston office.” However, the appellant never received any of the requested data from the Ministry. The appellant states that as a result of the unavailability of the data, he lost the financial support of a private sector sponsor for the drug utilization study.
In 1999, the appellant received funding from Health Canada, a department of the federal government, for a proposed research project entitled “A Cohort Study of Air Quality and Utilization of Hospital Services” (the air pollution study). The purpose of the study was “to examine the effect of air pollution on respiratory and cardiac health.” Subsequently, the appellant received approval for this study from the University of Toronto and McMaster University.
In 1999, for the purpose of the air pollution study, the appellant sought access to the Ontario Hospital Insurance Plan (OHIP) and Canadian Institute for Health Information (CIHI) databases (both administered by the Ministry’s Health Planning Branch). The appellant specifically sought claims and hospital discharge data from these sources. The Ministry decided to grant the appellant’s request for access to the OHIP and CIHI databases, and the Ministry and the appellant signed an agreement relating to the security and confidentiality of personal information for this purpose. In 2000, the Ministry disclosed the OHIP and CIHI information to the appellant.
In May 2000, the appellant wrote to the Ministry’s Drug Programs Branch, indicating that he “once again had funding to support the [ODB] linkage, and wished once again to initiate the process” of access to the [ODB database]. The appellant states he did not receive a response from the Ministry despite repeated communications, and in August 2000 he wrote to the Minister complaining about the lack of response from the Ministry.
Later in August 2000, the appellant wrote to the Ministry’s Drug Programs Branch again seeking access to the ODB database for the purpose of the air pollution study and for another proposed study “for which funding applications are being submitted to the Heart and Stroke Foundation and to the Canadian Institutes of Health Research.” The latter study concerned “prevention of stroke by management of risk factors such as high blood pressure, diabetes, and heart rhythm problems” (the stroke prevention study). The appellant enclosed with this letter a draft “Research and Confidentiality Agreement” between him and the Ministry regarding disclosure of ODB data for the air pollution and stroke prevention studies. Neither the appellant nor the Ministry ever signed this draft agreement.
On December 8, 2000, the Ministry’s Drug Programs Branch wrote to the appellant as follows:
This is in regards to your request for the provision of [ODB] data for research purposes.
As you are aware, the documentation pertaining to your request was forwarded to [the Ministry’s] Legal Services [Branch] for review to ensure there are no confidentiality concerns prior to the release of data. We have been advised that a research agreement between the ministry and yourself would not be sufficient to allow for the release of ODB data for the purposes of conducting research as stated in sections 42(a) and 21(1)(e) under the [Act] as your request currently stands.
Some of the concerns that were raised during the review include the following:
• that patient consent to disclose personal information was not obtained as part of the research protocol;
• that the use of an individual’s OHIP number as part of this research study does not meet the provisions stated in the [Health Cards and Numbers Control Act, 1991] i.e., health card numbers are intended to be used to obtain public health services and the collection of health card numbers for research purposes is not permitted unless designated in the Regulations; and
• there is a possibility that patients could be identified even if the personal identifiers are encrypted, due to matching of ODB data with other data provided by the ministry.
As a result, we are unable to release the ODB data requested for your proposal as it is presently designed . . .
The appellant responded to the Ministry’s letter as follows:
. . . Since you did not provide the rationale for your denial, allow me to address the specifics of the legislation that permit the approval of my request. You state that the release of this information is not permitted as “stated in sections 42(a) and 21(1)(e) under the [Act]. This is not correct.
Section 21(1)(e) states that information may be released for a research purpose if,
(i) the disclosure is consistent with the conditions or reasonable expectations of disclosure under which the personal information was provided, collected or obtained.
Section 21(1)(e) is clearly satisfied because your Ministry has published the following statement for holders of [OHIP] numbers: “A health care provider may use your Health Number only for payment or health administration purposes, planning research and/or epidemiological studies.” While it is true that not all of the subjects in the study are my patients, all of the Health Insurance Numbers were provided to me by the subjects’ physicians who are partners in the use of this information for research and/or epidemiological studies.
Section [21(1)(e)(i)] is thus clearly satisfied.
Section [21(1)(e)(ii)] states that the research purpose for which the disclosure is to be made cannot be reasonably accomplished unless the information is provided in individually identifiable form.
This section is clearly satisfied because the goal of the investigation is to study the medical treatment of health conditions in individuals and to study the susceptibility of individuals to the health effects of air pollution. From the data provided by your Ministry last Spring, I know which of the 108,000 subjects in the cohort have been hospitalized for respiratory problems, heart disease or stroke. I also know from the data provided by your Ministry last Spring which of these individuals have been seen in their physicians’ offices or hospital emergency departments for these conditions. I now need to know which medications they were prescribed so that I can study the effects of medical treatment on their diseases and their susceptibility to the adverse effects of air pollution. There is no substitute for identifiable data for these purposes.
Section [21(1)(e)(ii)] is thus clearly satisfied.
Section [21(1)(e)(iii)] states . . . the person who is to receive the record has agreed to comply with the conditions relating to security and confidentiality prescribed by the regulations.
This section is clearly satisfied because I signed a Research Agreement with the Ministry.
Section [21(1)(e)(iii)] is thus clearly satisfied. All of the requirements of Section [21(1)(e)] under the [Act] are thus clearly satisfied and there is no justification for denying my application under [the Act].
In your first bullet point you raise the concern that “patient consent to disclose personal information was not obtained as part of the research protocol.” Patient consent is always a concern, but as you know this is not a requirement under section [21(1)(e)] of [the Act]. The rationale for not obtaining consent was clearly set out in the Research Protocol which stated:
Ethics Considerations
This protocol will be reviewed by University Ethics Committees. We plan to use personal identifiers to ascertain ER visits and hospitalization of clinic patients. Because our anticipated cohort size is at least 50,000 individuals, we do not plan to seek individual consent for record linkage. We believe that this is ethically justified for the following reasons. Firstly, we believe that it is within the range of societal expectations that physicians would be interested in details of the ER visits and hospitalizations of their patients. Secondly, we believe that there are two very different uses of patient information. In one case, a third party, such as an insurer, is interested in the patient as an individual, and third party use of this information could have direct impact on the social and economic life of that patient. In the other case, researchers wish to view the patient as a sample of the human species, and hope that the patient is representative of other humans with similar characteristics, such as age and susceptibility to the adverse effects of air toxics. The observational researcher hopes to generalize from the individual to the species, and hopes that the individual under observation could be replaceable by any other human with similar characteristics. For the research proposed here, individual identifiers are irrelevant and used only to identify which of our patients’ charts should be reviewed and abstracted. Personal identifiers will be stripped from the data files after all relevant information is gathered. These identifiers will be encrypted and stored in a separate file (for later use should we have the need to go back and check the original data source).
This reasoning was accepted by the Research Ethics Boards at McMaster University and the University of Toronto, each of which issued ethics certificates for the project. This reasoning was accepted by your Deputy Minister who approved release of information from the OHIP and Hospital Discharge Files. This reasoning was accepted by the Ethics Committees of the various Hospital Corporations where my Research Nurses are currently abstracting study data from the charts of patients identified by the OHIP and Hospital Discharge linkages. These Hospital Corporations include the Toronto Hospital (Toronto General and Toronto Western Divisions), Mt Sinai Hospital, Scarborough General Hospital, Trillium Hospital Corporation (Mississauga and Queensway Divisions), Sunnybrook and Women’s College Hospital, St Michael’s Hospital (St Michael’s and Wellesley Divisions), Oakville Trafalgar Hospital and St Joseph’s Hospital in Hamilton.
Absence of patient consent to disclose information is thus clearly not justification to refuse my request for information.
Bullet point 2 stated: “the use of an individual’s OHIP number as part of this research study does not meet the provisions stated in the [Health Cards and Numbers Control Act, 1991] i.e., health card numbers are intended to be used to obtain public health services and the collection of health card numbers for research purposes is not permitted unless designated in the Regulations”.
This is clearly untrue. Use of our patients health numbers for research purposes is clearly permitted under Section 2(2)(b) of the Act. In addition your Deputy Minister has approved the use of Health Card Numbers for this project, and another Branch of your Ministry used these Health Insurance Numbers to provide me with identifiable data from the OHIP and Hospital discharge files.
The concern raised in Bullet 2 is thus clearly not justification to refuse my request for information.
Bullet point 3 is particularly bizarre, and leads me to wonder whether you read the application before overturning the Deputy’s approval. You wrote “there is a possibility that patients could be identified even if the personal identifiers are encrypted, due to matching of ODB data with other data provided by the ministry.” This is a very strange comment since I specifically requested identifiable data, and the entire purpose of the application is to link identifiable data with information on health outcomes received from other Ministry databases. How else can I investigate modifying effects of medications on the susceptibility of individuals during episodes of adverse air quality? As discussed above, the provision of identifiable data is clearly permitted under section [21(1)(e)] of [the Act].
The bizarre concern raised in Bullet 3 is clearly not justification to refuse my request for information.
In summary none of the reasons you have presented in your letter are justification for the withholding of information from this study.