Patient details

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In this panel, one can narrow down the subset of selected patients based on criteria that characterize the patient as a whole, such as HPV status or whether they are smokers. To do so, put the toggle buttons in one of the following three states:

  • Only patients are selected where the respective characterisitc is *positive*. E.g. in the case of "smoking status" this would select all smokers.
  • This selection means that no filtering will be performed regarding the corresponding patient characteristic.
  • Selecting this will only include patients in the subset that do not have the respective characteristic or it is negative (e.g. not-smoking or HPV negative).

Note: Just below the buttons there are three numbers that give a preview of how many of the currently selected patients can be categorized according to the respective characteristic. Here, the middle number indicates for how many patients the characteristic is unknown.

Note: All filters in the Patient characteristics panel are combined via AND operations. This means, if one selects + for HPV status and - for neck dissection, the selection includes only patients who are HPV positive AND did not receive neck dissction.

Warning: Dont forget to hit compute after you have changed your selection criteria.

smoking status

209
0
72

HPV status

179
9
93

neck dissection

71
0
210

N+ vs N0

239
0
42

Primary tumor

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Filter the dataset further by tumor-specific details, like the lateralization of a patient's primary tumor, its location and/or T-category.

Next to the selected subsites and T-categories, this panel also displays how many patients presented with a tumor in the respective subsite / T-category.

Note: Both the subsites and T-categories are selected or deselected by clicking on the respective button. If it appears white on dark blue, it is selected. If it appears dark blue on light blue, it is deselected. For example, selecting 'T1' and 'T2' and 'Tonsil' will select all patients that have primary tumors located in the tonsil AND are T1 OR T2-category, i.e. different criteria are combined via AND operations whereas T-categories are connected via OR operations.

central

7
0
274

midline extension

88
0
193

Subsite

83

116

82

T-stage

65
80
49
87

Institutions

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Since we collect and visualize datasets from different institutions here, one can of course select which ones should be considered. To do so, simply click on the respective institution's logo. It is selected, if the logo is outlined and deselected if it is not.

Modalities

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Choose which of the available modalities to include in the visualization. Only patients are considered that have at least one of the selected diagnoses available. One may choose how to combine these - possibly conflicting - diagnoses:

  • logical OR: A lymph node level (LNL) is reported as metastatic or involved as soon as one of the selected diagnoses reports a positive finding. Anything else is reported as healthy.
  • logical AND: LNL's are reported as involved only when all diagnoses agree on positive findings. If that is not the case, meaning that none or not all agree on such a finding, it is reported (rather optimistically) as healthy.

contralateral

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Here the most important information is visualized. For each side of the neck (ipsilateral being the same side as the tumor, contralateral the opposite) it displays a row for each LNL. From left to right, that row consists of...

  • its roman numeral label (e.g. IV)
  • a three-way toggle-button to select a subset of patients that show metastases in that LNL () or are reported healthy (). Selecting the middle button () means that no filtering is performed
  • and a horizontal stacked bar that displays the ratio of patients with reports of metastases in that LNL to patients that appear to have a healthy LNL. Numbers to the left and right of that bar plot indicate the absolute numbers and give a brief explanation when hovering over them with the mouse pointer.

Note: If for some patients the involvement in a LNL is unknown, these patients are represented by the middle bar. This may for example occur when selecting FNP is diagnostic modality, which is performed only in selected LNL.

LNL select involvement (metastatic, unknown, healthy)
I both
3 278
a
0 281
b
3 278
II both
49 232
a
49 232
b
24 257
III
21 260
IV
7 274
V
2 279
VII
6 275

ipsilateral

help image

Here the most important information is visualized. For each side of the neck (ipsilateral being the same side as the tumor, contralateral the opposite) it displays a row for each LNL. From left to right, that row consists of...

  • its roman numeral label (e.g. IV)
  • a three-way toggle-button to select a subset of patients that show metastases in that LNL () or are reported healthy (). Selecting the middle button () means that no filtering is performed
  • and a horizontal stacked bar that displays the ratio of patients with reports of metastases in that LNL to patients that appear to have a healthy LNL. Numbers to the left and right of that bar plot indicate the absolute numbers and give a brief explanation when hovering over them with the mouse pointer.

Note: If for some patients the involvement in a LNL is unknown, these patients are represented by the middle bar. This may for example occur when selecting FNP is diagnostic modality, which is performed only in selected LNL.

LNL select involvement (metastatic, unknown, healthy)
I both
28 253
a
1 280
b
28 253
II both
228 53
a
223 58
b
120 161
III
108 173
IV
31 250
V
13 268
VII
30 251
Help
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From left to right the three buttons here are

  • the help button in light blue, opening this very menu
  • an info button in light orange that shows how many patients are in the currently narrowed-down subset and that redirects to a list of patients in that subset when pressed
  • the compute button in bright orange, which sends a request with the current selections to the server for an update of the visualized statistics

Finally, on the left in this box one can toggle between displaying absolute numbers or percentages.