TABLE 2.

Distribution of Assessment Time and Data Obtained

Total N = 21	W1	W4	W12	W24	W52
No. of weeks post stroke	1 to 2	4 to 6	12 to 14	24 to 26	52 to 54
No. of days post stroke	12 ± 3	34 ± 5	93 ± 8	184 ± 12	369 ± 10
No. of patients
IHI obtained	10 (48%)	13 (62%)	14 (67%)	18 (86%)	16 (76%)
ΔIHI obtained	8 (38%)	11 (52%)	12 (57%)	16 (76%)	15 (71%)
MEP count <9 (early TMS epochs)	0 (0%)	1 (5%)	1 (5%)	0 (0%)	0 (0%)
MEP count <9 (late TMS epochs)	2 (10%)	1 (5%)	1 (5%)	2 (10%)	1 (5%)
No MEP	4 (19%)	2 (10%)	0 (0%)	0 (0%)	0 (0%)
TS >90% MSO	3 (14%)	4 (19%)	2 (10%)	0 (0%)	0 (0%)
No reliable movement	6 (29%)	3 (14%)	2 (10%)	0 (0%)	0 (0%)
Other missing	2 (10%)	0 (0%)	3 (14%)	3 (14%)	5 (24%)

The first two rows are the number of weeks and days poststroke at each time point of assessment. The following two rows are patient counts with obtained data. The following six categories are counts of missing data for various reasons: MEP count <9 at early TMS epochs (20 and 50% RT) are likely attributed to lack of big enough MEP size (>50 μV), whereas those at late TMS epochs (80 and 95% RT) are likely attributed to TMS pulses occurring during the movement; “No MEP” or “TS >90% MSO” can sometimes be overlapping with “No reliable movement (index finger abduction)” count in cases of complete plegia; “Other missing” cases include data missing for random reasons: missed the time window, patient dropped out of the study, patients refused to continue the session, or technical issues during the session. Percentages out of the total N = 21 are presented in parentheses.

IHI = interhemispheric inhibition; MEP = motor-evoked potential; MSO = maximal stimulator output; RT = reaction time; TMS = transcranial magnetic stimulation; TS = test stimulus.