Table 2 Multivariate Logistic Analysis of Correlates of Non-Adherence to Drug Regimens (N = 400)

 Female

1

1

1

1

 Male

1.16 (0.68–1.98)

1.21 (0.71–2.07)

1.59 (0.99–2.55)

1.53 (0.95–2.46)

  ≥ 75

1

1

1

1

 65–74

0.69 (0.41–1.16)

0.71 (0.43–1.19)

0.79 (0.51–1.23)

0.78 (0.50–1.21)

 No high school diploma

1

1

1

1

 High school diploma

0.72 (0.39–1.32)

0.73 (0.40–1.41)

0.85 (0.51–1.43)

0.92 (0.55–1.54)

 No

1

1

1

1

 Yes

2.94 (1.59–5.26) ^a

2.86 (1.54–5.26) ^a

1.19 (0.69–2.04)

1.11 (0.65–1.89)

 Not Noticeable

1

1

1

1

 Mild to Moderate

1.27 (0.60–2.63)

1.27 (0.60–2.70)

0.87 (0.36–1.32)

0.68 (0.36–1.32)

 Severe

2.5 (1.18–5.26) ^b

2.63 (1.25–5.56) ^a

0.88 (0.46–1.69)

0.88 (0.46–1.69)

 Factor 1 (Dosage/Purpose)

6.76 (4.24–10.8) ^a

7.35 (4.53–11.9) ^a

0.93 (0.74–1.16)

0.93 (0.73–1.17)

 Factor 2 (Side Effects/Other Instructions)

1.33 (0.99–1.78)

1.49 (1.09–2.05) ^b

1.28 (1.02–1.62) ^c

1.29 (1.03–1.64) ^c

 No

1

1

1

1

 Yes

1.25 (0.71–2.17)

0.97 (0.58–1.64)

1.08 (0.66–1.72)

0.87 (0.56–1.37)

 None

1

1

1

1

 At Least One

1.23 (0.70–2.32)

1.19 (0.67–2.08)

0.76 (0.47–1.23)

0.76 (0.92–1.25)

  < 10

1

NA

1

NA

  ≥ 10

2.02 (1.10–3.90) ^c

-

2.43 (1.31–4.50) ^b

-

 0–4

NA

1

NA

1

  ≥ 5

-

1.09 (0.60–1.97)

-

1.66 (0.99–2.80)

-2 Log Likelihood

391.2

395.5

491.9

491.6

Nagelkerke R-Square

0.438

0.428

0.11

0.10

% of correctly predicted outcome

77%

76%

66%

66%