Cross tabulation of sensory impairment, compared to age and sex-specific normal thresholds, between the monofilament test and the various other nerve function tests used in the INFIR Cohort Study at the time of the incident event in the respective nerves.

Cases are patients with an incident event (sensory impairment by monofilaments, motor impairment by VMT or a Type 1 or 2 leprosy reaction;an incident event (N = 74); controls are patients with leprosy, but without an event (N = 73). Frequencies of impairment among the controls refer to the same follow-up visit as the incident event of ‘their cases’. MFT = monofilament test, WDT = warm detection threshold, CDT = cold detection threshold, VPT = vibration perception threshold; ˆ the N represents the denominator for the first parameter listed. However, due to a variety of reasons, the N was not always exactly the same for each parameter of that same test; * Old = impairment already present at diagnosis; New = new or additional impairment at the time the patient was diagnosed to have an outcome event; ** w/a = at wrist or ankle; e/f = at elbow or fibula head.