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Table 3 Sequences of Non-missing Monthly Statusa

From: Improving knowledge about disability transitions by adding retrospective information to panel surveys. Population Health Metrics

 

Observations with One or More Sequences

Number of Sequences per Observation

Length of Sequences

 

% of Nb

Mean (SD)

Max

Mean (SD)

Median

Min

Max

 

Sparsec

Dense

Densed

Sparse

Dense

Sparsee

Dense

Sparse

Dense

Both

Sparse

Dense

ADL

            

Eating

1.16

19.45

1.044 (0.212)

1

3

2.00

4.79 (10.71)

2

2

2

2

133

I/O Bedf

1.16

25.87

1.091 (0.296)

1

3

2.00

13.86 (22.74)

2

2

2

2

164

Mobility

1.10

28.98

1.12 (0.339)

1

3

2.00

18.12 (27.85)

2

6

2

2

190

Dressing

1.08

23.72

1.071 (0.272)

1

3

2.00

11.34 (20.42)

2

2

2

2

133

Bathing

1.08

30.55

1.118 (0.339)

1

3

2.00

19.73 (27.98)

2

6

2

2

158

Toileting

1.13

24.01

1.083 (0.280)

1

3

2.00

11.86 (20.76)

2

2

2

2

141

  1. aMonthly STATUSt followed by STATUSt+1, where STATUS is nonmissing, through month of death where available. Data columns 3–10 restricted to observations having such sequences. SD = Standard Deviation.
  2. bN = 3440.
  3. cSparse = sparse data; Dense = dense data; See text for definitions. Sequences of non-missing monthly status information are available in sparse data only in instances when a month of interview is followed immediately by the month of death.
  4. dMean number of sequences in sparse data observations having a sequence is 1 in all instances.
  5. eStandard deviation not applicable to sparse data sequence length.
  6. fI/O Bed = Getting in or out of bed.