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Table 3 Distribution of patients in the defined variation patterns and subgroups

From: Neck pain patterns and subgrouping based on weekly SMS-derived trajectories

Defined patterns and subgroups Prevalence
n = 1206
Number of weeks with pain (0–43) Number of days with pain per week, in weeks with any pain, (0–7) Pain intensity in weeks with any pain, (0–10) Total number of days with pain during 43 weeks, (0–301)
n (%) Median (IQR) Mean (SD) Mean (SD) Mean (SD) Range
Ongoing       
1 Severe 1 (0.1) 22 7.0 (0) 6.0 (0) 161 (0)
2 Moderate 1 (0.1) 40 7.0 (0) 5.0 (0) 280 (0)
3 Mild 0 (0)
4 Minor/recovered 49 (4.1) 0 (0–0) 0 (0–0) 0 (0–0) 0 (0–0) 0
Total Ongoing 51 (4.2) 0 (0–0) 7.0 (0) 5.5 (0.7) 4.5 (36) 0–280
Persistent fluctuating       
5 Severe 54 (4.5) 43 (40–44) 6.0 (1.0) 7.2 (0.9) 252 (51) 116–301
6 Moderate 185 (15.4) 43 (39–44) 4.5 (1.5) 5.0 (0.6) 182 (68) 50–301
7 Mild 298 (25.0) 40 (34–43) 3.3 (1.4) 3.4 (0.6) 130 (66) 29–301
8 Minor 45 (3.9) 34 (26–40) 2.6 (1.4) 2.0 (0.5) 87 (68) 20–301
Total Persistent fluctuating 582 (48.3) 41 (35–43) 3.9 (1.7) 4.1 (1.4) 148 (75) 20–301
Episodic       
9 Severe 276 (22.6) 20 (13–27) 2.9 (1.1) 3.9 (1.0) 59 (40) 5–217
10 Moderate 174 (13.9) 14 (8–22) 2.4 (0.9) 2.7 (0.6) 39 (29) 3–153
11 Mild 88 (7.3) 11 (6–18) 2.0 (1.1) 1.9 (0.5) 29 (33) 2–252
12 Minor 9 (0.8) 3 (3–12) 1.5 (0.5) 1.0 (0.0) 13 (13) 1–42
Total Episodic 547 (45.4) 17 (9–25) 2.6 (1.1) 3.2 (1.2) 47 (36) 1–252
Single episode       
13 Severe 5 (0.4) 1 (1–1) 3.4 (1.5) 5.8 (1.1) 4.8 (2.6) 1–8
14 Moderate 11 (0.9) 1 (1–2) 2.5 (1.7) 4.0 (0.5) 4.0 (3.6) 1–14
15 Mild 7 (0.6) 1 (1–1) 2.1 (1.2) 2.4 (0.5) 2.3 (1.1) 1–4
16 Minor 3 (0.3) 1 (1–1) 1.0 (0.0) 1.0 (0.0) 1.0 (0.0) 1–1
Total Single episode 26 (2.2) 1 (1–1) 2.5 (1.5) 3.6 (1.6) 3.7 (2.8) 1–14
  1. IQR Interquartile range, SD Standard deviation
  2. No patients were distributed into the Mild Ongoing subgroup. All patients in the Minor Ongoing/Recovered subgroup were recovered and as such had no days with pain per week and a mean NRS = 0